`4` D -> is walking 

`->` But - chỉ sự đối lập , tương phản -> dùng thì hiện tại tiếp diễn  

`5` A -> Because of 

`->` the cold weather - 1 cụm danh từ -> dùng because of 

VII.

`1` This program was watched by millions of people last night

`->` Câu bị động thì quá khứ đơn : S + was / were + Vpp + by + O 

`2` If she hadn't lost  her money , she would have bought a dictionary

`->` Câu điều kiện loại 3 diễn tả 1 hành động ko thể xảy ra ở quá khứ : If + S + had + Vpp  + O , S + would have + Vpp + O 

`3` If it had had  his help , we would have bought that house 

`->`Câu điều kiện loại 3 diễn tả 1 hành động ko thể xảy ra ở quá khứ : If + S + had + Vpp  + O , S + would have + Vpp + O  

`4` It was not until 1980 that they began to learn English 

`->` It was not until + time + that + S + Ved / V2 + O  

`5` He spent 2 hours driving to London 

`->` S + spend time + Ving + O : dành bao nhiêu thời gian làm việc gì. 

# Ríttttt (ㆁωㆁ)

4D

-> walks -> is walking

-> thì HTTD : s + be + V-ing

5A

-> because -> because of

-> because + S ( là người ) còn because of + S ( là vật )

VII

1 this programme is watched by milions of people last night 

-> câu bị động thì HTĐ : s + be + VPII + by + O

2 if she hadn't lost her money  she wouldn't bought that dictionary

-> đây là câu ĐK loại 3 : if + s + had + VPII + o , s + would have + VPII + O

3 if it had had  his help we  would have bought that house 

-> đây là câu ĐK loại 3 : if + s + had + VPII + o , s + would have + VPII + O

4 it was not until 1980 that they began to learn 

-> cấu trúc thì QKĐ + ( not ) until + thì QKĐ

5 he spent 2 hours driving to london

-> spend / spent time + V-ing