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mắt tui có mù ko mà ko thấy đề nhỉ 

37.     If you _______ your homework, you wouldn’t have been punished.

          a. have done              b☯. had done              c. would have done       d. will do

38.     If she weren't stupid, she_____ fail.

          a. won't                       b. shall not               c☯. wouldn't                 d. don’t

39.     __________you try your best, you can’t get success.

          a. If                             b☯. Unless                  c. When                      d. Because

40.     If you _____ your shopping there, someone may steal it.

            a. left  b. are left        c. to leave      d☯. leave 

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