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26.Manmuststop_______theearth’satmosphere.
A.fillingB.wastingC.pollutingD.blackening
27.Wecan’t_______another100kilometersanymore.
A.haveB.turnC.makeD.reach
28.IsMary______tojoininus?
A.supposedB.exposedC.supportedD.indicated
29.Iwanttobetoldall_______.
A.whichhappenB.whichhappened
C.thathadhappenedD.thathadbeenhappened
30.We’veallheardofThomasEdison,_______whoinventedtheelectriclightandmanyotherthings.
A.manB.amanC.themanD.men
31.Don’ttellmesuchthings_______youarenotcertain.
A.thatB.whichC.thoseD.as
32._______amicroscopewecanseedifferentkindsofthingsthatareunabletobeseenbyournakedeyes.
A.IntermsofB.InplaceofC.BymeansofD.Byfar
33.Jacksonwenttowork______hisillness.
A.besidesB.eventhoughC.inspiteofD.although
34.Anybodywilldo,_______heisresponsibleforthat.
A.asfarasB.sofarasC.aslongasD.assoonas
35.Isupposetheyhaveknownaboutit,_______?
A.amIB.amnotIC.havetheyD.haven’tthey
36.It______himtenyearstowritethatnovel.
A.tookB.spentC.costD.costed
37.Thestudentsarelookingforwardto_______theirholidaysinJapan.
A.spendB.spendingC.forspendD.spent
38.Theyall______mentioningthatgirl.
A.avoidedB.gotawayC.ranawayD.escaped
39.Humanbeingsshouldfindanew_______ofenergy.
A.orientB.sourceC.originD.souse
40.Thecouchiscomfortableto_______.
A.sitB.besatC.sittedD.siton
41.Soloudly_______thatallthepeopleintheroomgotafright.
A.heshoutedB.shoutheC.didheshoutD.hedidshout
42.Heistheonlyoneofthesonsinthefamilywho______receivedhigheducation.
A.areB.isC.haveD.has
43.WethinkofMr.Li______ourgoodfriend.
A.isB.tobeC.asD.hasbeen
44.Themountainis1,000feet_______thesealevel.
A.overB.higherC.aboveD.high
45.Theroadwillbeblockedifthere_______anothersnow.
A.isB.willbeC.tobeD.willhave
46.Davidlikecountrylifeandhasdecidedto_______farming.
A.getholdofB.getalongwithC.goinforD.gothorough
47.Thesechildrenhaveanadvantage_______thoseincalculation.
A.overB.thanC.toD.with
48.Shanghaihasalargerpopulationthan_______inChina.
A.anycityB.anyothercitiesC.othercityD.anyothercity
49.Insomecountriestherearealotofyoungpeoplenowneed_______teeth.
A.falseB.untrueC.wrongD.erroneous
50.Thisbookcosts______thatone.
A.twicemoreB.twicemoreasC.twotimesmoreasD.twiceasmuchas