有些题必要时可以加上解释啊~

有些题必要时可以加上解释啊~
1.All experts agree that the most important consideration with diet drugs is carefully_____the risks and benefits.
A.valuating B.valuing C.weighing D.supposing
2.Tom shut everybody out of the kitchen____he could prepare his grand surprise for the party.
A.which B.when C.so that D.as if
3.I wonder why he hasn't _____.It's already 9 o'clock.
A.turned to B.turned in C.turned down D.turned up
4.--It's a long time___we last met.
--Yes,and it will be a long time____we meet again.
A.that;until B.since;before C.when;that D.before;since
5.I'm writing to you___you will support me in the project.
A.in the hope to B.in order to C.in the hope that D.so as to
6.It is upsetting when a person___punished for a crime that he didn't commit.
A.has B.becomes C.gets D.turns
7.The chemistry teacher said,"you must___that everyone must follow my instruction when doing the expreiment."
A.on that basis B.keep in mind C.wear out D.classify into
8.In recent years travel companies have secceeded in selling us the idea that the further we go,___.
A.our holiday will be better B.the better our holiday will be
C.the better will our holiday be D.our holiday will be the better
9.That sound doesn't ____in his language so it's difficult for him to pronounce.
A.occur B.happen C.remind D.remain
10.--I'm not ___ up so early yet,but i have to___myself to it.
--Yeah.Just as the saying goes,"An early bird catches the worn."
A.used to getting;adopt B.used to get;adopt
C.accustomed to getting;accustom D.accustomed to get;accustom
11.When I was young,I was always___ to my elder brother whenever he went.
A.attached to B.attacked C.attended D.surrounded
12.Your teacher will___your recent illness when judging your examination.
A.keep in mind that B.keeps an eye out for
C.be equal to D.take into consideration
13.There was a ___look on his face when he met with the ___problem.
A.confusing;confusing B.confused;confusing
C.confused;confused D.confusing;congfused
14.It's quite ___ me why such things have been allowed to happen.
A.for B.behind C.against D.beyong
15.To be punctual ___ the conference,then left___an early trian this morning.
A.for;by B.at ;by C.at;on D.for;on
16.Many new problems will___when the new examination system comes into being.
A.rise B.arise C.raise D.arouse
17.The manger,___it clear to us that he didn't agree with us,left the meeting room.
A.who has made B.having made C.made D.making
18.The prize of the game show is $30,000 and an all expenses ___ vacation to China.
A.paying B.to be paid C.paid D.being paid
19.____by a great demand for vegetables,famers have built more gerrn houses.
A.Driven B.Being driven C.To drive D.Having driven
20.The childten went home from the grammar school,their lessons____for the day.
A.finishing B.finished C.had finished D.were finished

1.A 考察动词辨析 valuate评估
2.C 考察目的状语从句
3.D 考察动词短语 turn up露面
4.B 考察连接词
5.C 考察介词短语,in the hope that想要,有……的愿望
6.C 考察连系动词,get相当于be
7.B 考察动词短语,keep in mind记住
8.B 考察比较级用法,the more…… the more …… 越……,越……
9.D 考察动词辨析, remain不及物时表示存在
10.D 考察动词短语
11.C 考察动词辨析
12.D 考察动词短语
13.B 考察形容词
14.D 考察介词 beyond sb指超出某人理解范围
15.D 考察介词
16.B 考察动词辨析
17.B 考察非谓语
18.C 考察非谓语
19.A 考察非谓语
20.B 考察独立主格
以上仅代表个人观点,未必准确