`7.` Don't forget to turn off the radio.

`->` remember to do sth `=` don't forget to do sth: nhớ phải làm gì

`8.` Linh has been writing the letter to my brother for a week.

`->` S + started + V-ing + time + ago

`=` S + have/has been + V-ing + for + time

`9.` Nga has been doing the exercise.

`->` S + am/is/are + still + V-ing

`=` S + have/has + been + V-ing

`10.` This is the first time Van has visited my homeland.

`->` This is the first time + S + have/has + P2

`11.` Because I don't like this show, I don't watch it.

`->` Because + clause, clause: bởi vì...nên...

`12.` It's the first time Thu has ever talked to me.

`->` It's the first time + S + have/has + ever + P2

`13.` It was Van who wrote that report yesterday.

`->` who là đại từ quan hệ dùng làm tân ngữ/chủ ngữ thay thế cho danh từ chỉ người

`14.` I'd sooner he didn't drink wine.

`->` S + would sooner + S + Ved/V2: muốn ai làm gì hơn

`15.` Despite the hard rain, Ha went out.

`->` Despite + Noun/Noun Phr/V-ing, clause:  mặc dù...nhưng...

`16.` Ly has not seen Nam for ages.

`->` It's + time + since + S + Ved/V2

`=` S + have/has not + P2 + for + time

7. Don't forget to turn off the radio

-> Remember + to V + O

= Don't forget + to V + O

8. Linh has written the letter to my brother for a week

-> S + started/began + Ving + TG + ago

= S + have/has + VpII + for khoảng thời gian/since mốc thời gian

9. Nga has been doing the exercise

-> S + is/are/am + still + V-ing 

= HTHTTD: S + have/has + been + V-ing

10. This is the second time Van has visited my homeland

-> S + have/has + ever + VpII + for + once/twice/... time + before

= This is the second/third/.... + S + have/has + VpII + O

11. Because I don't like this show, I don't watch

-> S + V, so + S + V: nên

-> Because + S + V, S + V: bởi vì

12. It's the first time Thu has talked to me

-> S + have/has + never + VpII + before

= It's the first time + S + have/has + VpII + O

13. It is said that Van wrote that report yesterday

-> It is said that + S + V2 + O

14. I'd sooner he didn't drink wine

-> S + would sooner + S + V2 + O: thích ai làm gì hơn

15. In spite of the hard rain, Ha went out

-> S + V, but + S + V: nhưng

-> Despite/In spite of + NP/V-ing, S + V

16. Linh hasn't seen Nam for ages

-> It's + khoảng thời gian + since + S + V2 + O

= S + haven't/hasn't + VpII + for khoảng thời gian