The day before yesterday the police including one officer ____ searching for the murder in that mountain.
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A
is
B
were
C
are
D
was
推荐题目
Grammar mistakes of this kind _____ widely among Chinese students. 
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A
have been made
B
has been made
C
have made
D
has made
It’s Sunday morning. We _______ get up early.
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A
haven’t to
B
hasn’t to
C
don’t have to
D
have not to