B → to lock

to lock-going

Don't forget(look)............the door before(go)..........to bed

                       \(\downarrow\)

              lock chứ nhỉ

Don't forget(lock)..to lock..........the door before(go)...going.......to bed

Đáp án: D

Giải thích: Don’t forget to V= Remember to V: Nhớ làm gì

Dịch: Đừng quên khóa cửa trước khi ra ngoài.

I. Give the corect form of the verbs

1. Don’t forget (lock) ……to lock…… the door before going to bed.

2. My hobby is (sit) . …………sitting……………in a quiet room and look through the window into the distance.

3. You look very cold. Sit down by the fire and I ( make ) ………will make……you a cup of tea.

4. This book tells you how (win) ……………to win…………… at chess

5. Nam will call you as soon as he (come) ………comes……back his house

6. Leave me alone. I (do)…………am doing………. my homework.

7. How many hours a day your sister (do) her homework?    …………does your sister do……………………

8. They are practicing (score)…………scoring…………… the goals.

9. Mary (already / write) has already written five letters.

10. Tom (move) moved to this town in 1994.

11. My friend (be) was in Canada two years ago.

12. I (not / be) haven't been to Canada so far.

13. But I (already / travel) have already travelled to London a couple of times.

14. Last week, Mary and Paul (go) went to the cinema.

15. I can't take any pictures because I (not / buy) haven't buy a new film yet.

16. (they / spend) Did they spend their holiday in New Zealand last summer?

17. (you / ever / see) Have you ever seen a whale?

18. I (just / finish) have just finished my homework.

1, Lan is taking English this semester.

à ………English is taken by Lan  this semester.……………………………………………………………….

2, What / they / often / do / morning?

à …………… What do they often do in the morning?………………………………………………………….

3,  Don’t forget…………to locking…………….. (lock) the door before going out.

4, ,They were hungry, so he suggested …………having…………. (have) dinner early.

Tham Khảo
1 . to lock - going
2 . to explain - to listen
3 . cleaning - to do
4 . striking - to get
5 . to let - catch

6 . to give up - jogging
7 . working-spending
8 . spending-earning
9 . to read
10 . to read
11 . crying - seeing - crying
12 . climbing - to explain - to say
13 . to ask - to leave
14 . go - promise - not to tell 
15 . to avoid - being - waiting
16 . to drive - to fly
17 . to spend - rebuilding
18 . staying - go

1. By the time we (stop)...........got stop..........., we had driven six hundred miles

2. Don't forget (lock)............locking............the door before going to bed

3. The pens (produce) are produce by Thien Long Company are usually cheap and good

4. The man (sit).........sat.............next to me was very nervous

5. Mr Hung told me (tell)......told.........him the truth

6. Mai is in her room. She (play).....is playing................the guitar

7. Everybody  (want)......want........to learn English

Bài 1: Chia động từ trong ngoặc ở thì thích hợp

1. By the time we (stop)...........stopped..........., we had driven six hundred miles

2. Don't forget (lock).............to lock...........the door before going to bed

3. The pens (produce)..........produced......... by Thien Long Company are usually cheap and good

4. The man (sit)............sitting..........next to me was very nervous

5. Mr Hung told me (tell)........to tell.......him the truth

6. Mai is in her room. She (play).........is playing............the guitar

7. Everybody  (want)......wants........to learn English

After having locked the door, I went to bed yesterday.

=After I had locked the door,I went to bed yesterday

Cấu trúc :

Before + QKĐ, QKHT

=After + QKHT,QKĐ

remember