Buying clothes（）(是一件很耗时的工作), because those clothes that a person likes are rarely the ones that fit him or her.

填空题By the time you get to New York, I（）(已经动身去) London.

填空题Why didn’t you tell me you could me the money? I（）(本来不必从银行借钱的）

填空题The ship’s generator broke down and the pumps（）(不得不用手工操作) instead of mechanically.

填空题It may be necessary to stop（）(每隔一定时间) in the learning process and go back to the difficult points in the lessons.

填空题There’s a man at the reception desk who seems very angry and I think he means（）(想找麻烦).