He ________ the exam, but he was too careless.

—It rained cats and dogs this morning. I'm glad we took an umbrella.
—Yeah, we would have got wet all over if we   ________. 

Grace doesn’t want to move to New York because she thinks if she _____there ,she wouldn’t be able to see her parents very often.

Had it not been for the haze（霾）weather phenomenon, there         fewer car accidents in Beijing then．

I suggest that he _____, or else he could make things worse.

--- Shall we take the 10:20 train?
--- No. If we took that train, we       too late.

I suggested to my mother that she         a drawing club after her retirement form teaching.

—Need I accomplish all we have set out to do?
—Yes, you ____; otherwise you ____fired.

It would be impossible for him to leave hospital tomorrow if he 　　　 first aid when the accident happened.