Professor Smith, along with his assistant, ________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
________an important decision more on emotion than on reason, you will regret it sooner or later.
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A
Based
B
Basing
C
Base
D
To base
—Is this your family?—Yes, it is. These are my parents and those _____ my brothers.
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A
are
B
am
C
be
D
is