单项选择题

Was it not until you began to work ______ how much time you had wasted

A．did you realize
B．have you realized
C．that you realized
D．what you realized
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单项选择题
After the new technique was introduced, the factory produced ______ cars in 2012 the year before.
A．twice as many; as
B．twice as more; as
C．twice the number of; than
D．twice many; as
单项选择题
______ no need for us to make a fuss about some minor defects in the week.
A．It has
B．There is
C．It is
D．There has
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