What made you think he ……….in the Royal Air Force?
A. must have to be
B. had been
C. was being
D. had had to be
Giải bởi Vietjack
Câu này tạm dịch như sau: Điều gì làm cho bạn nghĩ anh ấy đã từng thuộc Lực lượng không quân hoàng gia?
- must không dùng với have to =>loại A
- had been: thì quá khứ hoàn thành diễn tả hành động này xảy ra trước hành động made phía trước =>Chọn B
- was being sai vì động từ "be" không chia tiếp diễn =>loại C
- had had to be cũng sai vì không tồn tại thì này =>loại D
=>What made you think he had been in the Royal Air Force?
Đáp án cần chọn là: B
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How long (learn / she)_________ English before she went to London?
He (drive) __________less than an hour when he ran out of petrol.
One of the parents _____________ the children's song this time last year.
I ______ my document before the power went out in the computer lab.
As soon as I shut the front door I realised that I………….my key in the house.
Marry _________ her housework already by the time Peter came over.
The doctor took off the plaster that he (put on)_________ six weeks before.
