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1.     If my mother ________ me up, I will catch the bus.
          A. doesn't pick               B. didn’t take
          C. not pick                     D. hadn’t picked
2.     If John had played for our football team, we________the match.
          A. would win                           B. will win
          C. win                                      D. would have won
3.     If the weather is nice, I ________for a walk.
          A. will go                                 B. go
          C. would go                                      D. would have gone
4.     If you had tried your best, you__________the final exam.
          A. wouldn't fail                       B. wouldn't have failed
          C. won't fail                                      D. hadn't failed
5.     If she had money, she__________that house.
          A. would have bought             B. could buy
          C. will buy                               D. had bought
6.     If I had a map, I________.
          A. can get lost                         B. won't get lost
          C. wouldn't have got lost                  D. wouldn't get lost
7.     I would not have read your diary if you________it in such an obvious
place.
          A. didn't hide       B. hadn't hid        C. hadn't hidden   D. not hid
8.     The problems would be solved if the government ________some measures.
          A. takes                B. took                 C. had taken         D. would take
9.     I will help you if you________my secret.
          A. kept                 B. will keep                    C. keep                 D. would keep
10.     ________, the accident would not have happened yesterday.
          A. If Nam drives more carefully
          B. If had Nam driven more carefully
          C. Had Nam driven more carefully
          D. Unless Nam had driven more carefully
11.     I'd give up my job if I________a big prize in a lottery.
          A. win                  B. won                 C. had won                    D. would won
12.     I'll help you if__________________.
          A. you told me the truth                             B. you tell me the truth
          C.you will tell me the truth                         D. you have told me the truth