`text{@dg}`

`text{1. My father has worked in this factory since last week}`

`text{2. He has lived in Ho Chi Minh city since he 8}`

`text{3. He has learned English since he 18}`

`text{4. They began to work in that factory five years ago}`

`text{5. They began to learn English 4 years ago}`

`text{6. I haven't seen her for 10 years}`

`text{7. They have checked the machines for two hours}`

`text{8. They have built the bridge for two years}`

`text{9. Nam has learned English since 1998}`

`text{10. Khanh has played computer games since 2002}`

1.my father has worked in this fatory last week

2.he has lived in ho chi minh when he was 8

4. they began worked in that factory in five years

3.he has learnt english when he was 18

5.they began learned in lish in 4 years

6. i haven't seen her for 10 years

7.they have started checking for two hours