`34` Her homework was being done (by her) at 12 yesterday 

- Her homework không thể tự thực hiện hành động -> Câu bị động

- Câu bị động của thì Quá Khứ Tiếp Diễn , dấu hiệu : at 12 yesterday 

- Cấu trúc : S + was/were + being + Vpp + ( by  O ) 

- Her homework thuộc số ít -> chia was

- do -> did -> done (v) : làm 

`35` As she forgot bringing an umbrella , she got wet

- As = because : vì , bởi vì -> Chỉ nguyên nhân

- As + S + V + O 

- Because + S + V + O 

`36` Since he didn't do his homework , he was punished

- Since : vì , bởi vì -> Chỉ nguyên nhân

- Since + S + V + O 

- so : vì vậy -> Chỉ kết quả

- Clause 1 , so + clause 2 

`37` When did you stay here ?

- When hỏi thời gian không cụ thể

- When + did + S + V nguyên?

- How long hỏi khoảng thời gian 

- How long + has/have + S + Vpp ?

`38` How long is it since you last saw this film ? 

- When + did + S + (last) + V nguyên ?

- How long is it + since +S + last + Ved/V2 + O? 

34. Her homework was being done at 12 yesterday

Đảo ngữ

35. As she forgot to bring an umbrella, she got wet

36. Since he didn't do his homework, he was punished

As=Since=Because

37. When did you start staying here?

38. How long is it since you last see this film?