题目内容

24、If you feel tired and sick of fat food, that is ________ you have to go to the hospital for medical examination.

A. why                         B. whether           C. when                  D. what

试题答案

24、D

25、D

26、B

27、C 

28、C

29、D

30、C

31、A 

32、B 

33、B

34、A

35、D

36、C

37、C

38、A

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