1.These plants are rather difficult-------.A.to look after B

1.These plants are rather difficult_______.A.to look after B.to be looked after C.being looked aft1.These plants are rather difficult_______.A.to look afterB.to be looked afterC.being looked afterD.looking after2.The road_______built last year.A.has beenB.has being builtC.is beingD.was3.Dr.Hoffman proposed that we_______the meeting until next week.A.put offB.to put offC.putting offD.need put off4.Not always_______they want (to).A.people can do whatB.can people do what C.people cannot do whatD.can't people do what5.– Are you feeling better today,Mrs.Silver?– _______.A.Don't worry about meB.Just stay in bed and have a good restC.There must be something wrongD.Yes,thanks doctor.But I still feel dizzy6.Are trees_______along the road right now?A.plantB.planting C.being planted D.planted7.My aunt has lived in New York_______1995.A.forB.duringC.inD.since8.Not until most of the people had left the airport_______his sister was there.A.that he sawB.had he seenC.did he seeD.that he had seen9.– Hey,Barbara.You look so pale.– _______.A.I'm just getting over the fluB.It doesn't matterC.You didn't sleep well last nightD.I'm sorry to hear that10.One of the benefits of the new model is that it is easier_______than the old one.A.operating B.to be operated C.to operate D.operated11.– Have you got a table for four,Waiter?– _______.A.Welcome to our restaurantB.Yes,sure.This way,pleaseC.We have booked the seatsD.Here are the menus12.I haven't read_______book,but I read half of it.At least I know something about the subject now.A.wholeB.the wholeC.all ofD.all13.By next year he_______in New York for five years.A.has workedB.has been workingC.worksD.will have worked 14.Jack enjoys_______Peking Opera.A.listen toB.listeningC.listenD.listening to15.Our Lab was being_______when we visited the university.A.rebuiltB.rebuildC.rebuildingD.to rebuild16.They are_______students that they all performed well in the nationwide examinations.A.so diligentB.such diligent C.so much diligent D.such very diligent 17.– Can I help you to get it down?– _______.A.No problemB.Yes.Let's get itC.Thanks.It's so nice of youD.It's no trouble at all18.The work_______by the time you get there.A.will have been doneB.was doneC.had been doneD.has done19.Let's go to the cinema,_______?A.will you shan't weB.shan't we C.don't weD.shall we20.Once he starts a job,he won't stop_______it is finished.A.tillB.afterC.beforeD.until