1.Notknowingwhattoreply___suchaquestion,wekeptsilent.A./B.toC.withD.on2.Doingallthehousework___mymotheratleastthreehoursaday.A.spendsB.affordsC.occupiesD.spares3.The___runnercanrun2milesinfifteenminutes.A.commonB.

　　1.Notknowingwhattoreply___suchaquestion,wekeptsilent.

　　A./B.toC.withD.on

　　2.Doingallthehousework___mymotheratleastthreehoursaday.

　　A.spendsB.affordsC.occupiesD.spares

　　3.The___runnercanrun2milesinfifteenminutes.

　　A.commonB.usualC.averageD.general

　　4.I’dratheryou___thebooktomenow.

　　A.willreturnB.shouldreturnC.returnD.returned

　　5.Iwonderwhytheydon’tallow___thelibrary.

　　A.touseB.ususeC.ususingD.ustouse

　　6.Whatareyou___ifsheasksyoutostay?

　　A.doingB.todoC.tobedoneD.tobedoing

　　7.IfIwereyou,I___accepttheinvitation.

　　A.willB.wouldC.mayD.should

　　8.Therewassuchalongtimeattheexhibition___wehadtowaitforabouthalfanhour.

　　A.asB.thatC.soD.hence

　　9.Speaktohimslowly___hecanunderstandyoubetter.

　　A.inorderB.soasC.sothatD.for

　　10.ItwasinBritain___hegothisPh.D.

　　A.whereB.inwhichC.thatD.there

　　11.Bylaw,whenonemakesalargepurchase,heshouldhave___opportunitytochangehismind.

　　A.accurateB.urgentC.excessiveD.adequate

　　12.Nowthereisnoneedtoworryaboutthedeadlinesinceweareaheadof___.

　　A.tableB.chareC.scheduleD.graph

　　13.Reading___thelines,IwouldsaythattheGovernmentaremoreworriedthantheywilladmit.

　　A.behindB.betweenC.alongD.among

　　14.Nooneneedstofeelawkwardin___hisowncustoms.

　　A.pursuingB.followingC.chasingD.seeking

　　15.Thelawyeradvisedhimtodropthe___,sincehestandslittlechancetowin.

　　A.eventB.incidentC.caseD.affair

　　16.Howmanymilehaveyoubeen___today?

　　A.reachedB.beenC.coveredD.away

　　17.Therewasabigholeintheroadwhich___thetraffic.

　　A.setbackB.stoodbackC.heldupD.keptdown

　　18.Whoisthefirstmantomakea___acrosstheAtlanticOceanalone?

　　A.tourB.tripC.voyageD.route

　　19.Hehasdifficulty___theword.

　　A.topronounceB.forpronouncingC.pronouncingD.ofpronouncing

　　20.Researchersdiscoveredthatplantsinfectedwithavir