大学英语!1：They had to decide whether they should ___ some class

大学英语!1：They had to decide whether they should ___ some classes.
1：They had to decide whether they should ________ some classes.
1.call off
2.call on
3.call up
4.call in
2：She _______ him when he fell on dark days.
1.stuck by
2.stuck with
3.stuck on
4.stuck to
3：As we know,blood types A and B cannot receive AB,but AB may receive A or B.Type O can give to any other group; hence it is often called the _____ donor.
1.general
2.popular
3.universal
4.common
4：He seems to be _____ enough to climb to the mountain top in an hour.
1.radiant
2.conscientious
3.conspicuous
4.energetic
5：The capital intended to broaden the export base and _____ efficiency gains from international trade was channeled instead into uneconomic import substitution.
1.secure
2.extend
3.defend
4.possess
6：The English language _____ a vivid saying to describe this sort of situation.
1.owns
2.contains
3.holds
4.possesses
7：The crisis sent the citizens out to the shops to _______ as they could.
1.buy off
2.buy out
3.buy up
4.buy in
8：The university _____ consists of full professors,associate professors and assistant professors.
1.crew
2.personnel
3.faculty
4.staff
9：These flowers are in full bloom for the earth is rich and _____.
1.damp
2.humid
3.moist
4.wet
10：Although he knew little about the large amount of work done in the field,he succeeded________ other more well-informed experimenters failed.
1.which
2.that
3.what
4.where
11：Everyone _____ around quietly to avoid waking the baby.
1.climbed
2.crawled
3.slipped
4.crept
12：I’ve never been to Beijing,but it’s the place________.
1.where I’d like to visit
2.in which I’d like to visit
3.I most want to visit
4.that I want to visit it most
13：I meant to write to you,but __________.
1.I forgot writing it
2.I forgot writing
3.I forgot to do
4.I forgot
14：The government gave a very _____ explanation of its plans for industrial development.
1.extensive
2.widespread
3.universal
4.comprehensive
15：Your total scores _______ to 89.5.
1.sum up
2.summing up
3.summed up
4.sums up
16：He _______ himself to smoking two cigars a day.
1.hinders
2.maintains
3.restricts
4.retains
17：All factories and mines are _____ by government officials.
1.examined
2.surveyed
3.inspected
4.investigated
18：To send a spacecraft to the moon was really a scientific _____.
1.venture
2.business
3.experience
4.adventure
19：May I _____ that if we don’t leave now we shall miss the bus?
1.point out
2.point to
3.speak out
4.refer to
20：I don’t know if the story is true but I will try to _____ it.
1.identify
2.confirm
3.conform
4.verify