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Past simple => Present perfect
1/ The students began doing this test an hour
=>The students have done this test for an hour
2/Lan started working in that factory two years ago
=>Lan has workedin that factory for two years
3/She began studying english 3 yaers ago
=>She has studied english for 3 yaers
4/Tom began to collect stamps in 2004
=>Tom has collected stamps since 2004
5/She began to study english 3 years ago
=>She has studied english for 3 years
6/Nam started working for that company four years ago
=>Nam has worked for that company for four years
7/ It started raining an hour ago
=>It has rained for an hour
8/Lan began learning chinese in 2006
=>Lan has learnt chinese since 2006
9/Minh started to swim fuve years ago
=>Minh has swum for fuve years
10/He began writing the report at 4 o'clock
=>He has written the report since 4 o'clock
He has never driven another car since he started driving.
=>This is the only car that he has driven(only)since he started driving.
The last time I watched Tv was a week ago.
=>I haven't watched TV(for)a week.
We bought this house two years ago
=>We had been buying this house for (had)two years.
1. The last time we saw her was on Christmas Day
=> We have not seen her since Christmas Day.
2. I haven't eaten this kind of food before
=> This is the first time I have eaten this kind of food.
3. It started raining an hour ago
=> It has rained for an hour.
4. We haven't visited my grandparents for two months
=> The last time we visited my grandparents was two months ago.
5. I have studied English for three years
=> I began studying English three years ago.
6. My brother hasn't seen his best friend for nearly five years
=> It's nearly five years since my brother last saw his best friend.
7. When did you start learning English ?
=> How long have you learnt English?
8. Jane is as tall as her older sister
=> Jane is the same height as her older sister.
9. These houses are not as large as those houses
=> Those houses are larger than these houses.
10. Your backpack is not the same as mine
=> My backpack different from yours.
11. Ba began collecting stamps three years ago
=> Ba has collected stamps for three years.
12. We started living here twenty years ago
=> We have lived here for twenty years.
13. It's five years since I last saw Nam
=> I haven't seen Nam for five years.
14. The last time she visited us was four months ago
=> She hasn't visited us for four months.
15. I know Susan, I first met her in 2006
=> I have known Susan since 2006.
16. Minh has a digital camera. He bough it in 2001
=> Minh has had a digital camera since 2001.
17. Mai plays the piano. She started when she was ten years old
=> Mai has played the piano since she was ten years old.
18. Barbara is in Ha Noi now. She arrived there five months ago
=> Barbara has arrived Ha Noi for five months.
19. They started living here last month
=> They have lived here since last month.
20. My shoes are different from yours
=> My shoes are not the same as yours.
2. This is the first time I ate this kind of food.
3. it has started raining for an hour
4. The last time we have visited my grandparents was two months ago.
5. I began studying English three years ago.
6. It's nearly five years since my brother last saw his best friend.
7. How long have you learned English?
9. Those houses are more larger than there houses.
10. My packback is different from your packback
11. Ba has collected stamps for three years.
12. We have lived here for twenty years.
13. I haven't seen Nam for five years.
14. She hasn't visited us for four months.
15. I have met Susan since 2006.
16. Minh has had a digital camera since 2001.
17. Mai has played the piano since she was ten years old.
18. Babara has arrived to Hanoi for five months.
19. They have lived here for a month.
20. My shoes are not the same as yours.
1. They built this house in 1987.
=> This house...........was built in 1987........................................................................
2. She will take that book.
=> That Book.................will be taken......................................................................................
3. He gives me some books
=> Some books..................are given to me.........................................................................
4. I have cooked the meal for an hour.
=> The meal...................has been cooked for an hour....................................................................................
5. We started learning English 5 years ago.
=> We have........... learned english for 5 years.............................................................................................
6. He has written to me since April.
=> The last time....................he wrote to me was april........................................................................
7. She hasn't had a swim for 5 years.
=> She last...........swam 5 years ago...............