题目内容：

求该大学英语练习正解
做了几次都无法做全对,又不知道错在哪题,求正解
1.He spent ______ collecting materials for his article.
A.half a year
B.a half year
C.half year
D.half of a year
2.If anybody calls,tell them I'm out and ask them to _____ their name and address.
A.pass
B.write
C.take
D.leave
3.My father works in a little company that _____ out boats to tourists.
A.employs
B.rents
C.borrows
D.offers
4.I gave John a present but he gave me nothing _______.
A.in return
B.in turn
C.in advance
D.in vain
5.You had better ______ a doctor as soon as possible.
A.seeing
B.saw
C.see
D.seen
6.I'd _____ your baby when you are away at work.
A.see through
B.look at
C.look into
D.see to
7.The old lady ______ on hearing her son’s death.
A.broke in
B.broke out
C.broke away
D.broke down
8.The old lady usually takes a walk after supper,_____ in front of her.
A.has a dog
B.taken a dog
C.leading a dog
D.with a dog
9.Though keen on music,my parents go to a concert only ______.
A.on many occasions
B.quite often
C.once in a while
D.in most cases
10.Mr.Hobbs left his office,still _____ why his secretary had been unhappy recently.
A.puzzling
B.puzzled
C.was puzzled
D.was puzzling
11.My parents didn't prevent me from travelling._____ me to do that.
A.Neither they encouraged
B.They didn't also encourage
C.They didn't either encourage
D.Neither did they encourage
12.Don't forget ______ the window before leaving the room.
A.to have closed
B.to close
C.having closed
D.closing
13.The girl is not happy at the new school.She has ______ friends there.
A.few
B.a few
C.little
D.quite a few
14.Helen was seriously injured in a car ______.
A.incident
B.accident
C.event
D.campaign
15.Literature and art have a great influence ____ people's ideology.
A.to
B.on
C.for
D.with
16.European football is played in 80 countries,______ it the most popular sport in the world.
A.making
B.makes
C.made
D.to make
17.There was a lot of fun at yesterday's party.You _____ have come,but why didn't you?
A.must
B.ought to
C.shouldn't
D.needn't
18.Fire,on one hand,can benefit the world.On the other hand,it can also destroy the world if not ______ under control.
A.bring
B.bringing
C.brought
D.to bring
19.He doesn't take hints easily,but he'll _____ what you're saying.
A.catch up with
B.catch hold of
C.catch sight of
D.catch on to
20.As is well known,electromagnetic waves travel _____ light.
A.such fast as
B.many fast as
C.as fast as
D.the same fast as