151.I usually go there by train.Why not ______ by boat for a change?

　　A.to try going B.trying to go C.to try and go D.try going

　　152.Go on ____ the other exercise after you've finished this one.

　　A.to do B.doing C.with D.to be doing

　　153.The party was successful， but we thought it a pity not ____ you.

　　A.invited B.to invite C.inviting D.to have invited

　　154.I delayed ____ your letter because I had been away for a week.

　　A.answering B.writing C.to post D.to sending

　　155.The noise of the door ____ the baby.

　　A.closing waken B.to close woke C.closed wake D.being closed woke

　　156.I ____ her not to delay ____ a doctor， but she didn't obey me.

　　A.persuaded， seeing B.advised， seeing C.persuaded， to see D.insisted on， to see

　　157.____ the truth he is a good husband.

　　A.Telling B.To tell C.Tell D.Having told

　　158.Why ____ there， Mary?

　　A.going B.go C.to go D.don't go

　　159.I was _____ at the ____ news.

　　A.surprised， unexpected B.surprising， unexpected

　　C.surprised， unexpecting D.surprising， unexpecting

　　160.If _____ you can tell him.

　　A.asking B.asked C.asking you D.being asked

　　161.The old man ____ for us has died.

　　A.cooking B.to cook C.cooked D.who cooked

　　162.You can't help ____ by the Great Wall.

　　A.striking B.struck C.being struck D.stricken

　　163.I was trying to get into the ______ bus.

　　A.crowd B.crowding C.crowdy D.crowded

　　164.The picture writing ____ long long ago is hard for us to understand today.

　　A.drawing B.to be drawn C.to draw D.drawn

　　165.The knife wants ____.We must have it _______.

　　A.sharpen， sharpen B.sharpened， sharpening

　　C.sharpening， sharpened D.to sharpen， sharpened

　　166.This is one of the experiments ____ in our laboratory.

　　A.being made B.making C.having made D.will make

　　167._____ as an old teacher， he is respected by his students.

　　A.Knowing B.Having known C.Known D.To know

　　168.Mother caught the boy _____ in the corner.

　　A.smoke B.to smoke C.smoking D.being smoked

　　169.Who were those people with the banner? A group ____ itself the League for peace.

　　A.calling B.calls C.called D.is called

　　170.______， the invention is useless.

　　A.To speak practical B.Speaking practical C.Practically speaking D.In speaking practical

　　171.Walking down the street the other day， __________.

　　A.I saw unusual something happened B. terrible accident happened

　　C.something unusual was seen by me D.I saw a terrible accident

　　172.Your hair needs washing badly， “washing” here means _______.

　　A.to wash B.to be washed C.wash D.washed

　　173.People don't like ______.

　　A.to be kept to wait B.to keep waiting C.to be kept waiting D.being kept to wait

　　174.I've been invited to a party _____ at their university at 7：30 p.m.next Wednesday.

　　A.given B.to be given C.giving D.being given

　　175.Those engines _______ by hand， now they are started by electricity.

　　A.used to be started B.were used to started

　　C.got used to starting D.used to start