21. We should pay attention to ________ is taught in the book after the class. A. howB. where C. when D. what
22. I can not but ________ the truth of her words, although it is hard to believe. A. to admit B. admittingC. admitD. have admitted
23. _______ she is in good health, she often helps others. A. Despite B. When C. If D. Although
24. If she _________ yesterday, we would have told her everything. A. cameB. would comeC. had come D. could come
25. A person who likes to talk to _______ is not really maD. A. oneself B. themselvesC. yourself D. itself
26. I watch my teacher ______ the exercise first before I attempt it myself. A. do B. to do C. done D. having done
27. There were five rooms in the house, _______ serves as kitchen. A. one of themB. one of whichC. one of thoseD. one of whom
28. ________ she came and saw you, I knew she was angry with the joB. A. A moment B. The moment C. In the momentD. At that moment
29. He did not regret ________ what he thought was right. A. to have doneB. being done C. to do D. having done
30. She told us that this book would cost ______ that one she borrowed from her frienD. A. twice much thanB. twice as much as C. as much twice as D. as much as twice
31.Why did you pay $500 more for that apartment? You ______ have known better. A. should B. mayC. willD. can
32._____ with computers is the best way to learn its capabilities. A. WorkB. Working C. WorkedD. Having worked
33._____ is often the case with a new idea, much preliminary activity and optimistic discussion produce no concrete proposals. A. That B. It C. WhichD. As
34.He said that it was important that everyone ______ his or her homework next Monday morning. A. turn in B. turns inC. turned inD. turning in
35._____ all her work an hour ahead of time, she decided to go home early. A. If she finishedB. When she finishes C. Having finishedD. She had finished
36.He didn’t seem to mind _____ TV while he was trying to study. A. they watchB. them to watch C. their watchingD. they watched
37. Two of the notebooks _____ Tom had lost in the library were returned to his dormitory. A. whatB. who C. whichD. whose
38. He glanced out the window to see if the rain ________. A. will stop B. stops C. were stoppingD. had stopped
39. I am sorry to _______ you some trouble by misreading the information. A. have caused B. cause C. caused D. having caused
40. _______ he speaks _____ not remains to be seen. A. Which … and B. What … or C. What… and D. Whether … or