21 ---What are you going to do tomorrow?

　　----I’m not sure。 I____ make a trip to Hanzhou with my girl friend。

　　A.may B.maybe C.will D.must

　　22。----The pen writes well though it doesn’t cost much。

　　---- Let me have a try。 So _____。

　　A.it is B.it does C.does it D.is it

　　23.The accident happened ______ a freezing winter morning。

　　A.on B.in C.at D.since

　　24。---____ the Internet _____ in your school?

　　---Yes ， but the computer in our office has often broken down。

　　A.Is，used B.Is，using C.Does ，use D.Has ，used

　　25。 There was a phone call for you while you were out and it was _____in English。

　　A。 called B。 rung C。 phoned D.made

　　26。 The essential needs should _______ to the prisoners of wars(战俘)。

　　A.offer B.be offering C.be offered D.to be offered

　　27。---I eat _____ vegetables and ______ meat than I did last year。

　　----That’s why you’re getting fatter。

　　A。 fewer，more B.more，less C.less，more D.many ，much

　　28。--- How many times have you _______ from your penfriend since last year?

　　A.heard B.received C.got D.written

　　29。 。—Do you know the city of Ningbo well ?

　　—Of course I do。 I’ve here for nearly 3 years。

　　A.come B。 got C.arrived D。 been

　　30。---Sorry 。I am late。

　　---It doesn’t matter.The meeting has ______ for just several minutes

　　A。 begun B。 started C。 been on D.held