38. Excuse me, but it is time to have your temperature______. 
A. taking                        B. taken 
C. took                          D. take
答案：B 使役动词。如果是主动的时候，使役动词后面跟动词原形；如果是被动的时候，使役动词后面跟过去分词；据题意，体温和测量之间是被动的，所以应选B。 

39. I cannot_____ the truth of your words, although they go against my interests. 
A. but admit                      B. but admitting 
C. help but to admit                D. help but admitting
答案：A 短语用法。Can not help doing sth.禁不住要干某事。Can not help but do sth.不得不干某事，需要跟动词原形，所以正确的选项应该是A。 

40. When I went to visit Mrs. Smith last week, I was told she two days before. 
A. has left                       B. was leaving 
C. would leave                    D. had left
答案：D 时态。前面的从句的时态是过去时，后面一句话又有时间副词tow days ago ，所以这个动作是过去的过去，应该用过去完成时选D。

41. The boat will not arrive____ forty-four hours. 
A. in         B. at             C. for        D. by
答案：A 介词的用法。In后面跟一段时间表示将来。Will已经暗示出题干的时态是将来时，所以应该选A项。 

42. In winter, animals have a hard time_____ anything to eat. 
A. to find                        B. to finding 
C. to find out                     D. finding
答案：D 习惯用法。Have a time doing sth.在…..方面有艰苦的时光。应选D。 

43. Since you won’t take advice, there is no_____ in asking for it. 
A. place                         B. point 
C. reason                        D. way
答案：B 固定搭配。There is no point in doing sth.没有必要做某事。选B。

44. _____ is known to all, too much smoking will cause lung cancer. 
A. That       B. It