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【简答题】

.The students in the classroom ______ not to make so much noise.
a. need b. ought c. must d. dare

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A.
生产者、分解者和非生物成分
B.
生产者、初级消费者、高级消费者、分解者
C.
消费者、分解者、病毒、非生物成分
D.
生产者、消费者、分解者、非生物成分
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【单选题】— Do you feel like________there or shall we take a bus?— I'd like to walk, but since there isn't much time left, I'd rather we________a taxi.[ ]
A.
to walk; take
B.
walking; took
C.
to walk; took
D.
walking; take
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A.
them
B.
which
C.
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D.
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A.
had melted
B.
has been melting
C.
melted
D.
is melting
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A.
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B.
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C.
which
D.
with which
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