1、[单选题] It is pretty well understood _________ controls the flow of carbon dioxide in and out the atmosphere today.摘要：1、[单选题] It is pretty well understood _________ controls the flow of carbon dioxide in and out the atmosphere today.A、thatB、whenC、whatD、how 2、[单选题...
A、that
B、when
C、what
D、how
2、[单选题] I can never forget the day _______ we worked together and the day ______ we spent together.A、when; which
B、which; when
C、what; that
D、on which; when
3、[单选题] He is working hard, ______will make him pass the final exam.A、that
B、which
C、for which
D、who
4、[单选题] The committee ______ over the problem among themselves for two hours.A、has argued
B、has been arguing
C、have argued
D、have been arguing
5、[单选题] Must we do it now? No, you _______.A、won’t
B、needn’t
C、can’t
D、don’t
6、[单选题] The surroundings of his house ______ clean now.A、is
B、are
C、was
D、were
7、[单选题] _____ the rain stops, we' ll set off for the station.A、Before
B、Unless
C、As soon as
D、Though
8、[单选题] _____ any change about the date, please tell me immediately.A、Will there be
B、Should there be
C、There will be
D、There should be
9、[单选题] Three hours ______ enough for us to finish the task.A、are
B、has
C、is
D、were
10、[单选题] _____ you go, don't forget your people.A、Whenever
B、However
C、Wherever
D、Whichever
11、[单选题] The teacher demanded that the exam _____ before eleven.A、must finish
B、would be finished
C、be finished
D、must be finished
12、[单选题] Parents are taught to understand ________ important education is to their children’s future.A、that
B、how
C、such
D、so
13、[单选题] Every means ______ tried but without much result.A、has been
B、have been
C、are
D、is
14、[单选题] Neither Tom nor his parents ______ at home.A、is
B、are
C、has
D、was
15、[单选题] These wild flowers are so special I would do __________ I can to save them.A、whatever
B、that
C、which
D、whichever
16、[单选题] She was _____ tired _____ she could not move an inch.A、so, that
B、such, that
C、very, that
D、so, as
17、[单选题] The order came that the medical supplies _____ to Beijing for the Sars soon.A、would be sent
B、should send
C、be sent
D、must be sent
18、[单选题] It is important that we _____ wild animals.A、will protect
B、should protect
C、shall protect
D、are protecting
19、[单选题] I _____ you some money, but I hadn’t any on me then.A、would lend
B、would have lent
C、could lend
D、may have lent
20、[单选题] Don’t believe him. What he said ______ be true.A、mustn’t
B、needn’t
C、shouldn’t
D、may not
21、[单选题] The young man insisted that he _____ nothing wrong and _____ free.A、did; set
B、had done; should be set
C、should do; be set
D、had done; must be set
22、[单选题] Read it aloud _____ the class can hear you.A、so that
B、if
C、when
D、although
23、[单选题] Information has been put forward __________ more middle school graduates will be admitted into universities.A、while
B、that
C、when
D、as
24、[单选题] My neigh bours used to give me a hand in time of trouble, _______ was very kind of them.A、who
B、which
C、that
D、it
25、[单选题] Must I take a bus? No, you _____. You can walk there.A、must not
B、may not
C、don’t have to
D、had better not to
