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单项选择题
The teacher suggested that they ______ in the exercise at once.
A.had handed
B.should have handed
C.handed
D.hand
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Our main concern is to ______ the living standard of the people.
A.raise
B.rise
C.arise
D.arouse
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Professor Smith is said ______ another important discovery in chemistry.
A.to make
B.to have made
C.having being made
D.having made
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You ought ______ the task the day before yesterday.
A.to finish
B.to finishing
C.to have finishing
D.to have finished
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The top of the mountain is ______, but the trees grew part way up its slope.
A.empty
B.vain
C.bare
D.blank
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The teacher suggested that they ______ in the exercise at once.
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C.handed
D.hand
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Don"t smoke in the classroom, ______
A.do you
B.will you
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D.could you
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There is ______ that he has tried his best in the examination.
A.not to deny
B.not denying
C.no denying
D.without denying
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______ is generally believed, there is no water on the moon.
A.As
B.What
C.That
D.It
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The new drug will not be put on the market ______ it has proved safe on humans.
A.if
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C.since
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The student continued his university study ______ his family was poor.
A.even though
B.as though
C.now that
D.since
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According to the time table, the train for Beijing ______ at 9:00 p.m. from Monday to Friday.
A.was leaving
B.is leaving
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He devoted his whole life to ______ care of the disabled children.
A.takes
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Only when we hurried to the airport ______ the flight was cancelled.
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______ arriving at the meeting room, Tina discovered that she had left the sample products in her office.
A.By
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Where is the ______ writing desk
A.charming round small
B.round small charming
C.charming small round
D.small round charming
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We haven"t been able to find out the ______ of the rumor.
A.source
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I ______ to come to your house last night but it rained hard.
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Import for the first three months this year is larger than for the ______ period last year.
A.relating
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His father was put into ______ prison, and he had to go to ______ prison to visit him once in a while.
A.a; the
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