The only thing that prevented the passing of the bill was the death of the Prime Minister. => Had it … (Miễn phí)

He got down to writing the letter as soon as he returned from his walk.

A. No sooner had he returned from his walk when he got down to writing the letter.

B. Not until he returned from his walk did he get down to writing the letter.

C. Only after he had returned from his walk did he get down to writing the letter.

D. Hardly had he returned from his walk when he got down to writing the letter.

I prefer going out for a meal to staying at home. ⇒ I'd rather........

The outcome of the election was never in doubt. => At no time …

If you still want to maintain this relationship, you ____ behave improperly like that.

A. ought to not

B. ought not to

C. mustn't

D. don't have to

The only reason the party was a success was that a famous film star attended.

A. Had it not been for the attendance of a famous film star, the party would not have been a success.

B. Hadn't it been for the attendance of a famous film star, the party would not have been a success.

C. Had the party not been a success, a famous film star wouldn't have attended.

D. Hadn't the party been a success, a famous film star wouldn't have attended.

Give a suitable preposition:

In the UK, poor air quality is responsible _______ some 40,000 deaths each year.

They started, as _______ gatherings but they have become increasingly formalized in the last few years.

A. informal

B. informally

C. informalize

D. informality