Professor Smith, along with his assistants,______ on the project day and night to meet the deadline.
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A
work
B
working
C
is working
D
are working
推荐题目
---The population of Henan ___________ very fast.---I agree. The population problem may be one of the most serious ones today.
#44244
A
are growing
B
grew
C
is growing
D
is grown
A poet and artist ______ coming to speak to us about Chinese literature and painting tomorrow afternoon.
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A
is
B
are
C
was
D
were
Mary keeps talking about the party. She had a very good time,_______?
#44207
A
hadn’t she
B
had she
C
didn’t she
D
did she