1.Soccer is said to be the best game to play.

Bị động kép ở HTĐ: S+ is/ am/ are+ Vpp + to V

2. Without air, we can't survive.

Cấu trúc: Without + N/Ving, SVO

3. I suggest she should turn off the lights when going to bed.

suggest + somebody + should+ V: khuyên ai nên làm gì

4. Edison who invented the electric bulb, was a great scientist.

Đại từ quan hệ who thế cho người 

5. My boyfriend loses his temper very easily.

Lose one's temper: mất bình tĩnh

6. The tickets haven't been paid for, have they?

Bị động HTHT: have/has + been + V3/ed 

7. I congratulated Melanie on passing her  exam.

Congratulate somebody on + Ving 

8. The water was not warm enough for the children to swim in.

S + be + adj + enough + for somebody + to V

`1`, Soccer is said to be the best game to play.

- Chủ động : S1 + V1 + (that) + S2 + V2

-> Bị động : S2 + to be + V1 (PII) + to be V2 (trường hợp V1, V2 cùng thì)

`2`, Without air, we can't survive.

- without N/ V-ing : không có

`3`, I suggest she should turn on the lights when going to bed.

- S + suggest (chia theo thì) + (that) + S + (should/ shouldn't) + V bare : đề nghị, gợi ý

`4`, Edison, who invented the electric light bulb, was a great scientist.

- who là ĐTQH thay thế cho danh từ chỉ nười

`5`, My boyfriend loses his temper very easily.

- short-tempered (a) dễ nổi nóng

- lose one's temper : nổi nóng, mất bình tĩnh

`6`, The tickets haven't been paid, have they?

- Bị động thì hiện tại hoàn thành : S + have/has + (not) + been + PII + (by O) (Nobody mang nghĩa phủ định -> Thể phủ định)

- Câu hỏi đuôi : cùng thì, ngược thể với câu kể

`7`, I congratulated Melanie on passing tour exam.

- congratulate sb on sth/ doing st : chúc mừng ai vì cái gì/ làm gì

`8`, The water was not warm enough for the children to swim in.

- S + tobe + (not) + adj + enough + (for O) + to V : (không) đủ thế nào (cho ai) để làm gì