请分析与解答.
1.—Yourphonenumberagain?I_______quitecatchit.
—It’s9568442.
A.didn’tB.couldn’tC.don’tD.can’t
2.—CanIhelpyou,sir?
—Yes.Iboughtthisradiohereyesterday,butit_______.
A.didn’tworkB.won’tworkC.can’tworkD.doesn’twork
3.Helen_______herkeysintheofficesoshehadtowaituntilherhusband_______home.
A.hasleft;comesB.left;hadcome
C.hadleft;cameD.hadleft;wouldcome
4.—_______myglasses?
—Yes,Isawthemonyourbedaminuteago.
A.DoyouseeB.Hadyousee
C.WouldyouseeD.Haveyouseen
5.IfirstmetLisathreeyearsago.She_______ataradioshopatthattime.
A.hasworkedB.wasworking
C.hadbeenworkingD.hadworked
6.—Isthisraincoatyours?
—No,mine_______therebehindthedoor.
A.ishangingB.hashungC.hangsD.hung
7.—Alice,whydidn’tyoucomeyesterday?
—I_______,butIhadanunexpectedvisitor.
A.hadB.wouldC.wasgoingtoD.did
8.—WhoisJerryCooper?
—_______?Isawyoushakinghandswithhimatthemeeting.
A.Don’tyoumeethimyetB.Hadn’tyoumethimyet
C.Didn’tyoumeethimyetD.Haven’tyoumethimyet
9.—Hi,Tracy,youlooktired.
—Iamtired.I_______thelivingroomallday.
A.paintedB.hadpainted
C.havebeenpaintingD.havepainted
10.—Nancyisnotcomingtonight.
—Butshe_______!
A.promisesB.promisedC.willpromiseD.hadpromised
11.Shirley_______abookaboutChinalastyearbutIdon’tknowwhethershehasfinishedit.
A.haswrittenB.wroteC.hadwrittenD.waswriting
12.—Hey,lookwhereyouaregoing!
—Oh,I’mterriblysorry._______.
A.I’mnotnoticingB.Iwasn’tnoticing
C.Ihaven’tnoticedD.Idon’tnotice
13.Theprice_______butIdoubtwhetheritwillremainso.
A.wentdownB.willgodown
C.hasgonedownD.wasgoingdown
14.ThereportersaidthattheUFO_______easttowestwhenhesawit.
A.wastravelingB.traveled
C.hadbeentravelingD.w