`I`.

`1`. belonged

`2`. held

`3`. liked

`4`. doubted

`5`. closed

`6`. understood

`-` be to V ( nhấn mạnh) `=` V

`II`.

`2`. If it were not for his anxiety for Carla, his happiness would have been conplete.

`-` Cấu trúc "Nếu không vì, nếu không tại, nếu không có": If it not be for+ N+, SVO

`3`. Were it not for the gorverment's intervention, the strike will probaly still going on.

`-` Đảo ngữ "Nếu không vì, nếu không tại, nếu không có" ( đk loại `2`) : Were it not for+ cụm N, SVO

`4`. Had it not been for the police's arrival, the fight could have been go out of hand.

`-` Đảo ngữ "Nếu không vì, nếu không tại,..." ( đk loại `3`): Had it not been for+ Cụm N, SVO

`5`. But for the sounds of bird singing, everything is quiet.

`-` SVO except for cụm N `=` But for+ cụm N, SVO: Ngoại trừ...

`6`. If it was not for the United Nations, there would have been far more wars in the last `50` years.

`-` cấu trúc giống câu `2`

`7`. If it had been for the road work, we would have been here `2` hours.

`-` cấu trúc giống câu `2`