lesson21

　　A：2mustbewritten3itwon'tbeopened4mustn't/mustnotbeused5itwouldbedone6hastobeexplained7can't/cannnotbefound8musthavebeendone9mighthavebeenrepaired10can't/cannotbedone

　　B:canberepaired,willberepairedbysaturday,couldbedone

　　C:1.understand2.realize3.offered4.house5.home6.determined7.drove8.driving

　　D:1AnAmericancat.

　　2NexttoaplaneatChicagoAirport.

　　3Thecatwassuckedintotheplane.

　　4Itwenttozurich,LiberiaandthenbacktoZurich.

　　5Hesaidtheycouldhearnoise.

　　6IthasbeentakenhomebyanemployeeatZurichAirportandhasbeennamed"jumbo"

　　LESSON22

　　A:on,in,on,from,in

　　B:Theyaccusedmeofstealingthemoney.

　　Iinsistedonpayingforthemeal.

　　Theautheritiesmustpreventthisdiseasefromspreading.

　　We'llincludethatgirlintheteam.

　　Ahupnotistcureedhimofsmoking.

　　Justconcentrateonstudyingforyourexams.

　　I'llborrowthatbookfromJohn.

　　He'sveryexperiencedinsolvingproblemslikethat.

　　Hesuspectedherofcommittingthecrime.

　　Ourteachercongratulatedusonwinningtheschoolbasketballchampionship.

　　C:HisnameisFrank.

　　Thewritermettheothermantenyearsago.

　　TheyweresailingacrosstheEnglishChannel.

　　Becausetheyexchangedaddresses.

　　Heisworriedbecausethemanwantstovisithimwithhiswifeandsixchilren!

　　D:on,of,of,on,from,of,in,on,of,of

　　LESSON23

　　A.

　　1.awillphone

　　2.bcanbebought

　　3.cwillyoubestaying

　　4.ahadpacked

　　5.asaid

　　6.btold

　　7.bwasbuilt

　　8.cmust

　　9.chave

　　10.csay

　　11.aareyoudoing

　　12.chavebeen

　　13.bcan'tbedone

　　14.cDoyou

　　B.

　　1.thereis2.Itis3.thereis4.Itis5.Yhereare6.theyare

　　7.Theyare8.Theyare9.Theyare

　　C.

　　1.Therewas2.itwas3.Therewere4.Therewas5.therewas6.therewas

　　7.therewere8.theywere9.theywere10.itwas11Therewas

　　D.

　　Ourshooliscalled.ItisinthecenterofBeijing.Itwasbuiltin1950,soitisquiteanoldschool.Thereabout...studentsinourschool.Theyoungestare...yearsoldandtheoldestare...yearsold.

　　Schoolstartsat8:00inthemorningandfinishesat...Theschoolhasgotabout...classroomsandlecturerooms,anditalsohasalarge

　　assemblyhall,agymnasium,threesciencelaboratoriesand...

　　Lesson24

　　A(Possiblecompletions)

　　Whatcolourisis,please?

　　Andwhat'syourname?

　　Canyoudescribethecase?/Howbigisthecase?

　　Andwhatdoesitcontain?/What'sinit?

　　Doesitcontainanythingelse?

　　Whendidyouleaveithere?

　　What'sthebookcalled?

　　CanIlookatit?

　　B

　　1received

　　2lend

　　3payattentionto

　　4remind

　　5understands

　　6giveup

　　7gaveback

　　8setoff

　　9knockedout

　　10Puton

　　11lookingfor

　　12taken

　　C(Possiblequestions)

　　Whydidyougotoseethehotelmanager?