1．If she had been aware that the mushroom were poisonous, she________(pick) them for dinner.
答案：wouldn't have picked
2．With all the exercises ________ (finish), Jack went to the stadium to play badminton with his classmate.
答案：finished
3．My advice is that you ________ (quit) smoking.
答案：(should) quit
4．Jack is a great talker. It's high time that he ________ (do) something instead of just talking.
答案：did/should do
5．I didn't know his telephone number. ________ (know) it, I would have rung him up.
答案：Had I known
6．Had I received your letter, I ________ (start) off two days ago.
答案：would have started
7．It is our idea that she ________ (not buy) the diamond.
答案：(should) not buy
