A professor and a writer _________present at the meeting.
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A
was
B
is
C
were
D
hadbeen
推荐题目
The number of smokers in China ________increased in recent years, and a number of them _________ the youth.
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A
has; are
B
have; are
C
is; is
D
are; are
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