---What are you busy with ?--- We are carrying out a research ____ the causes of cancer.
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A
into
B
onto
C
to
D
in
推荐题目
_____ all our efforts to save the school, the authorities decided to close it.
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A
In spite of
B
In case of
C
In need of
D
In terms of
Researches are convinced ______ the positive effect of laughter ______ physical and mental health.
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A
of; at
B
by; in
C
of; on
D
at; on
—Why do you suggest we buy a new machine?—Because the old one has been damaged ______.
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A
to repair
B
beyond repair
C
in repair
D
under repair
Mr Black was driving fast to take his wife to a nearby hospital because their baby was ________.
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A
on its way
B
in the way
C
by the way
D
out of the way