Bài `5` :

1. He has never visited Ha Long Bay before.

`→`This/It is the first time + S + have/has + VPII.

`=` S + have/has never + VPII + before

2. She has worked here since last year.

`→`S + started/began + VING/TO V + time

`=` S + have/has + VPII + for/since + time

3. We have eaten lunch since it started to rain.

→`S + started/began + VING/TO V + time

`=` S + have/has + VPII + for/since + time

4. I haven't had my hair cut since she left me.

`→`S + last + V2/ed + khoảng time + ago.

`=` S + have/has not + VPII + since/for + time

5. He hasn't met me for 5 months.

`→`The last time + S + V2/ed +was + khoảng time + ago.

`=` S + have/has not + VPII + since/for + time

6. We haven't met you for a long time.

`→`It's + time + since + S last + V quá khứ

`=` S + have/has not + VPII + since/for + time

7. How long have you had this computer?

`→`When + did + S+ Start/ begin + to V/ Ving ?

`=` How long + have/ has + S + VPII ?

8. I haven't had such a delicious meal before.

`→`This/It is the first time + S + have/has + VPII.

`=` S + have/has not + VPII + before

9. The last time I went to work was a month ago.

`→`S + have/has not + VPII + since/for + time

`=` The last time + S + V2/ed +was + khoảng time + ago.

`10.` It is 5 days since I last talked to him.

`→`S + have/has not + VPII + since/for + time

`=` It's + time + since + S last + V quá khứ