Q33: I used to speak English better than Nam.

Q34: Mary said that she didn’t know what Fred was doing.

Q35: If the weather had not been terrible lately, I wouldn't be so depressed now.

Câu đk loại 2: S + V (qkđ) + O, S + would/could + V(nguyên thể)

Q36: He spent two hours doing his homework.

It takes/took (sb) + time + to do sth  = S + spend + time + V-ing.

Q37: Nam, who studied well, won the scholarship.

Q38: A new bridge will be have to built across the river soon.

Q39: It's been two years he hasn't lived here.

Q40: Despite the fact that the traffic was bad yesterday, I arrived at the meeting on time.

Q41: The weather is too hot for us to go out.

Q42:  It was such a boring story that e turned off the light and went to bed.

=>
33. I used to speak English better than Nam. ( used to V : đã từng)
34. Mary said that she didn't know what Fred was doing. ( said -> lùi thì)
35. If the weather weren't terrible, I wouldn't be very depressed now. ( câu đk loại 2 If S V2/ed, S would V)
36. He spent two hours doing his homework. ( spent time Ving = took time to V)
37. Nam, who studied well, won the scholarship. ( who -> đtqh chỉ người)
38. A new bridge will have to be built across the river soon. ( câu bị động)
39. It is two years since he lived here. ( It's + time + since QKĐ)
40. Despite the bad traffic, I arrived at the meeting on time yesterday. (Despite N/Ving)
41. It is such hot weather that we don't want to go out. ( such a/an adj N that)
42. The story was so boring that we turned off the light and went to bed. (so adj that)