1.When a fire ______ at the National Museum, many valuable paintings were completely destroyed.

　　A.broke off B. broke out C.broke down D. broke up

　　2.They think it ______ never to disagree with their employers.

　　A.politic B. political C.politics D. politician

　　3.Is there anyone who ______ the plans put forward by the committee?

　　A.differs B. disagrees C.refuses D. opposes

　　4.We do not hesitate to give our lives for communism,______ suffer some hardships.

　　A.let down B. let alone C.leave out D. leave off

　　5.If you drive a motorcar to the danger of the public, you may make yourself ______ a heavy fine.

　　A.liable to B. alert to C.acquainted with D. relevant to

　　6.Children's behavior at home and at school is always a reaction to the way in which they are ______.

　　A.treated B. remedied C.adjusted D. relieved

　　7.The once beautiful flowers in the vase had ______.

　　A.withered B. wandered C.wavered D. wrinkled

　　8.He's been working too hard and he's ______. He needs a rest.

　　A.run out B. run down C.run over D. run across

　　9.Roses are quite ______ flowers in English gardens.

　　A.ordinary B. common C.usual D. general

　　10.What did he say in the calss? I really can't ______ it out.

　　A.make B. run C.put D. come