专升本每日一练：9月英语(六)

　　55.The crazy fans ________ patiently for two hours and they would wait till the movie star arrived.A. were waitingB. had been waitingC. had waitedD. would wait【答案】B。【解析】考查动词时态。句意：疯狂的粉丝已经耐心地等了两小时了，并且他们还将继续等下去，直到这个电影明星出现。因为would wait是过去将来时，可见此事发生在过去，再结合for two hours可知，wait这个动作是从过去某一时刻开始，一直延续到另一个过去时刻，并且还在等，一直要等到那位影星到来，所以用过去完成进行时：had been doing，故选B。

　　56.This machine is very easy ________. Anybody can learn to use it in a few minutes.A. operatingB. to be operatingC. operatedD. to operate【答案】D。【解析】考查非谓语。句意：这台机器很容易操作。任何一个人都可以在几分钟内学会使用它。operate逻辑主语是人，是主动关系，排除B、C，再根据句型“主语+be+adj+to do”得出，故选D。

　　57.Thank you for all your hard work last week. I don’t think we ________ it without you.A. can manageB. could have managedC. could manageD. can have managed【答案】B。【解析】考查虚拟语气。句意：感谢你上周的努力工作。我认为没有你，我们本不能做成这件事的。根据题干中所给出的时间last week可知，我们已经做完了工作，故排除A、C两项，再结合虚拟语气基本形式是情态动词(过去式)+have done，故选B。