1. The girl won’t have her lunch before she ______ her homework.
A. will finish B. finishes C. had finished D. finished
2. The athlete ______ training for three hours when the coach told him to break off.
A. have been B. are C. had been D. were
3. The prices ______ going up all the time there in the past few years so that complaints can be heard everywhere.
A. keep B. kept C. have kept D. were
4. I ______ to spend the weekend with you, but I couldn’t find any time.
A. hoped B. had hoped C. hope D. are hoping
5. New problems ______ all the time.
A. appear B. have appeared C. are appearing D. are appeared
参考答案：
1. 答案：B 解析：在表示时间和条件的状语从句中，谓语动词虽然表示将来，但不能用将来时的形式。如：When Jim comes back he will tell you what he has done. /I will not go with you if you don’t tell me the truth. /He wouldn’t go until we gave him what he wanted.
2. 答案：C 解析：had trained (过去已训练)发生在told (告诉)之前，故用过去完成时。例如：His army had been defeated when the reinforcement came to the battle field train. 也可以用作不及物动词，如：You must train hard if you want to join their team.
3. 答案：C 解析：根据can be heard 的时态，主语的谓语动词词组要用“到现在一直保持上升”(have kept + going up)的意思，故选C。再如：Production has been on the rise, so they can live a good life.
4. 答案：B 解析：“希望”发生在couldn’t find 前面，所以hope 用过去完成时。又如：The problem had been solved but he didn’t know.
5. 答案：C 解析：all the time 是一段时间，故谓语动词时态须用进行时，又如：During that period of time John was trying to find a way out for his firm.
本文选自新东方在线论坛。
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