34. I can’t thank you ______ much because without your help I ______ have won the first prize.

26.Younger adults who get either little sleep or a lot of it ________ see a greater expansion in their waistlines over time.
A. may        B. must         D. need        D. Shall

32．How_________I help them to understand when they won’t listen to me?

35．You have broken your promise；you______painting the house long ago．

24．It is a rule in our school that no books______out unless you have a library card.

35．—Oh，I just realized that I don’t have any money．
—You don’t？Well，don’t worry，I________lend you some．

18.When we were young, every evening we ____ stay at home waiting for our mother.

16. —Who____ it be that is knocking at the door?  
—It ____ be Father, but I’m not sure.  

9．You_______if you had spoken the truth out. But you were as quiet as a mouse.

28．You ______ very fast if you went from New York to Boston in six hours．