Exercise 1: 1.sewage, => or waste water, 2.pollutants => waste and cần danh từ cùng more and more danh từ...

Lê Thị Ngọc Tiên

3 tháng 5 - olm

Exercise 1: 1.sewage, => or waste water, 2.pollutants => waste and cần danh từ cùng more and more danh từ số nhiều nên phải chia " s".3 radioactive => radiation-proof. 4 aquatic => such as fish . 5 untreated => can spread disease 6 Đáp án: contaminated = nước bị ô nhiễm
Dựa vào nghĩa: bệnh tả lây qua nước → phải là “nước bẩn” 7.effects
Cụm quen thuộc: health effects = ảnh hưởng đến sức khỏe
Dựa vào: phía sau liệt kê bệnh → cần danh từ “ảnh hưởng”. 8:pollutant
Cụm: air pollutant = chất gây ô nhiễm không khí
Dấu hiệu: “dangerous air …” → cần danh từ chỉ “chất” 9: dumped
Cụm: are dumped annually = bị đổ ra mỗi năm
Dấu hiệu: có “are” → dùng bị động (V3). 10:dead
Cụm: dead fish = cá chết
Dựa vào ngữ cảnh môi trường
Exercise 2
1.C. had finished
Dấu hiệu: by the time + quá khứ (arrived)
→ hành động xảy ra trước → quá khứ hoàn thành
2.D. comes
Dấu hiệu: When + mệnh đề thời gian
→ dùng hiện tại đơn
3.A. will have
Mệnh đề chính → dùng tương lai
4.A. arrives
“As soon as” → hiện tại đơn
5.A. finish
“after” → hiện tại đơn
6.D. will be
“tomorrow” → tương lai
→ mệnh đề chính dùng will
7.A. comes
“until” → hiện tại đơn
8.C. is
“as soon as” → hiện tại đơn
9.B. will leave
Mệnh đề chính → tương lai
10.B. gets
“before” → hiện tại đơn

exercise 3
1 peaches, pineapples, blueberries → fruit
→ vì đều là trái cây
2 dog, cat, hamster, mouse → pet
→ đều là thú cưng
3 table, chair, desk → furniture
→ đều là đồ nội thất
4 dress, shirt, shoes → clothing
→ đều là quần áo / đồ mặc
5 pizza, spaghetti, soup → food
→ đều là thức ăn
6 tea, wine, milk → drink
→ đều là đồ uống
7 rings, earrings, bracelets → jewelry
→ đều là trang sức
8 teddy bear, doll, lego → toy
→ đều là đồ chơi
9 roses, lavenders, tulips → flower
→ đều là hoa
10 The Count of Monte Cristo, Harry Potter, Sherlock Holmes → novel
→ đều là tiểu thuyết
Exercise 4
1.b. often
Vì sống kế bên nên gặp thường xuyên
2.c. occasionally
30% = thỉnh thoảng
3.c. yearly
Annual = hằng năm
4.a. yearly checks my health
đúng vị trí trạng từ “yearly”
5a. never
0% = không bao giờ
6.a. sometimes
→ thỉnh thoảng chúng ta mới tháo dây dắt chó ở bãi biển
7.c. has often missed
→ trạng từ tần suất đứng sau “has”
8.c. frequently
→ quite frequently = khá thường xuyên
9.c. rarely
→ 10% = hiếm khi
10.a. never went to college
→ trạng từ “never” đứng trước động từ chính
Exercise 5
1 Linh works
→ Linh (số ít) → thêm -s
2 Cat likes
→ “Cat” số ít → thêm -s
3 Myanmar lives → danh từ số ít → lives
4 It rains
→ “It” → thêm -s
5 My son fries
→ “fry” → đổi y → ies
6.The museum closes
→ thêm -es
7.He tries hard, but I don’t think he’ll pass
→ try → tries; phủ định → don’t
8.She passes
→ thêm -es
9.Your life is so boring. You just watch TV
→ “life” → is; “you” → watch
10.His girlfriend writes
→ thêm -s
11.Do you speak English?
→ câu hỏi → Do + S + V
12.She doesn’t live in HCM city
→ She → doesn’t + V
Exercise 6
1.They were building
→ “they” → were
2.I was driving
→ hành động đang xảy ra khi bị gián đoạn
3.I was chatting, Mr. Henry was teaching
→ 2 hành động song song
4 My brother was watching
→ đang xem khi tôi về
5 I was preparing
→ “at this time last night” → quá khứ tiếp diễn
6.What were you doing at 7 pm last Monday?
→ câu hỏi → Were + S + V-ing
7.Where were you going when I saw you?
→ đang đi thì bị thấy
8.They were not going
→ phủ định
9.My mother was not doing
→ phủ định
10.Ms. Stacey was reading, children were playing
→ hành động song song
Exercise 7
1.When I was walking to school, I saw John.
→ đang đi (liên tục) → thấy (xảy ra bất chợt)
2.When I was helping in the kitchen, Mary came.
→ đang giúp → Mary đến (chen vào)
3.While she was cooking the soup, the children were playing.
→ 2 hành động đang diễn ra cùng lúc → đều continuous
4.While they were playing cards, the baby was sleeping.
→ cùng lúc → đều continuous
5.When I was working in the garden, my uncle called.
→ đang làm → chú gọi (xen vào)
6.Carol was watching TV while Bob and Peter were playing football.
→ cùng lúc → đều continuous
7.When she was washing her hair, the baby began to cry.
→ đang gội → em bé bắt đầu khóc
8.A strong wind was blowing when the plane landed.
→ gió đang thổi → máy bay hạ cánh (sự kiện chính)
9.When she was playing tennis, it began to rain.
→ đang chơi → trời bắt đầu mưa
10.When I was watching TV, the lights went out.
→ đang xem → đèn tắt
11.While he was playing the piano, she was listening to him.
→ cùng lúc → đều continuous
12.While she was tidying up her room, he was washing his car.
→ cùng lúc → đều continuous
13.The boys were helping in the garden while she was watering the flowers.
→ cùng lúc → đều continuous
14.He met Mary when he was walking through the park.
→ đang đi → gặp (xảy ra bất chợt)
15 We were playing computer games while she was reading a book.
→ cùng lúc → đều continuous
Exercise 8
1.The train leaves X tomorrow morning at 8:00 am.
→ “tomorrow morning” không cần giới từ → X
→ giờ cụ thể → at
2.I love going skiing in January.
→ tháng → dùng in
3.We met at the restaurant at 8pm.
→ giờ → at
4.The class is at 9am on Monday mornings.
→ giờ → at
→ ngày → on
5.I like to drink coffee in the morning and tea in the afternoon.
→ buổi trong ngày → in
6.We went out for dinner X last Wednesday.
→ có “last” → không cần giới từ
7.She left London on the 4th of March.
→ ngày cụ thể → on
8.I had a party on my birthday.
→ ngày cụ thể → on
9.Lucy went to New York at New Year.
→ dịp lễ → thường dùng at
10.We’re meeting at lunchtime X next Tuesday.
→ “lunchtime” → at
→ “next Tuesday” → không cần giới từ exercise 9
1.Is this cup yours?
→ không có danh từ sau → đại từ
2.The coffee is mine.
→ đứng một mình
3.That coat is mine.
→ đứng một mình
4.He lives in her house.
→ có “house” → dùng tính từ
5.You might want your phone.
→ có “phone”
6.The new car is theirs.
→ đứng một mình
7.She cooked our food.
→ có “food”
8.Don't stand on my foot!
→ có “foot”
9.She gave him her suitcase.
→ có “suitcase”
10.I met their mother.
→ có “mother”
11.Is this their coffee?
→ có “coffee”
12.Is the flat hers?
→ đứng một mình
13.The gray scarf is mine.
→ đứng một mình
14.That red bike is ours.
→ đứng một mình
15.We should take our coats.
→ có “coats”
16.That is my car.
→ có “car”
17.He dropped my bag.
→ có “bag”
18.Are these phones theirs?
→ không có danh từ sau
19.These cakes are ours!
→ đứng một mình
20Are those children yours?
→ đứng một mình

exercise 10
1.The boy said to the girl that he would never see her again.
→ will → would, you → her
2.He told her that she was his best friend.
→ said to → told, are → was
3. told his mother that he didn’t know how to do that exercise.
→ don’t → didn’t, this → that
4.The children said that they were waiting for the school bus.
→ are → were
5.Mary said that her father had died a year before.
→ died → had died, ago → before
6.John said that he had finished studying his lesson.
→ have finished → had finished
7.Mary told John that she couldn’t go to the movies with him.
→ can’t → couldn’t, you → him
8.Mary told her friend that she would expect to see her the following Wednesday.
→ shall → would, next → the following
9.He said that he didn’t know what had happened.
→ don’t → didn’t, happened → 10.had happened
She said that she had gone to the doctor the day before.
→ went → had gone, yesterday → the day before
11.He said that he had a toothache.
→ have → had
12.She said that she would write him a prescription.
→ will → would
13.They said that they were going to the drugstore.
→ are going → were going
14.He said that the doctor had given him some pills.
→ gave → had given
15.She said that she went to the supermarket every day.
→ thói quen → có thể giữ nguyên “went” (không cần lùi thì

Exercise 11
1.She asked where her umbrella was.
→ is → was, my → her
2.Martin asked us how we learned English.
→ do you learn → we learned
3.He asked if he had to do it.
→ Do I have → if he had
4.The mother asked her daughter where she had been.
→ have you been → had been
5.She asked her boyfriend which dress he liked best.
→ do you like → he liked
6.She wanted to know what they were doing.
→ are doing → were doing
7.He wanted to know if I was going to the cinema.
→ Are you going → if I was going
8.The teacher wanted to know who spoke English.
→ speaks → spoke
9.She asked me how I knew that.
→ do you know → I knew
10.My friend asked me where I had met her.
→ did you meet → I had met

Exercise 12
1.He asked me if I spoke English.
→ do you speak → I spoke
2.She asked me whether I was British or American.
→ are you → I was
3.She asked if I had got a computer.
→ have you got → I had got
4.He wanted to know if I could type.
→ can → could
5.She wanted to know if I had come by train.
→ did you come → I had come
6.He asked if I had been to Bristol before.
→ have you been → I had been
7.He asked her if she would be at the party.
→ will → would
8.She asked me if I could meet her at the station.
→ can → could, me → her
9.He asked me if I had seen that car.
→ did you see → I had seen
10The mother asked the twins if they had tidied up their room.
→ have you tidied → they had tidied

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