1、________ with the size of the whole earth, the biggest ocean doesn't seem big at all.

　　A.Compare　　B.When comparing　　C.Comparing　　D.When compared

　　2、________ the programme, they have to stay there for another two weeks.

　　A.Not completing　　B.Not completed

　　C.Not having completed　　D.Having not completed

　　3、According to a recent U.S.survey, children spend up to 25 hours a week ________ TV.

　　A.to watch　　B.to watching　　C.watching　　D.watch

　　4、The flu is believed ________ by viruses that like to reproduce in the cells inside the human nose and throat.

　　A.cause　　B.being caused　　C.to be caused　　D.to have caused

　　5、The flowers ________ sweet in the botanic garden attract the visitors to the beauty of nature.

　　A.to smell　　B.smelling　　C.smelt　　D.to be smelt

　參考答案：

　　1、D　2、C　3、C　4、C　5、B