1 : I started working for the company a year ago.
=> I have worked for the company for a year

2 : He learned to drive when he was eighteen.
=> he has learned to drive since he was eighteen.

3 : He began to learn English four years ago.
=> he has learnt English for four years

4 : I didn't live in Long Khanh when i was ten years old.
=> I haven't lived in Long Khanh since i was ten years old.

5 : I started writing this letter two hours ago.
=> I have written this letter for two hours

6 : She last read a newspapers on September 12.
=> she hasn't read a newspapers since September 12.

7 : My father stopped smoking five years ago.
=> my father hasn't smoked for five years

8 : He gave up drinking wine last year.
=> he hasn't drunk wine since last year

1 : I have worked for the company for a year

2 : He has learned to drive since he was eighteen.

3 : He has learnt English for four years

4 : I haven't lived in Long Khanh since i was ten years old.

5 : I have written this letter for two hours

6 : She hasn't read a newspapers since September 12.

7 : My father hasn't smoked for five years

8 : He hasn't drunk wine since last year