单项选择题

After he worked out the solution, ______ appeared a smile on his face.

A．it
B．here
C．what
D．there
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单项选择题
______ the former president’s supporters went out in the streets to express their anger and dissatisfaction.
A． A small amount of
B．A large number of
C．little bit of
D．A great deal of
单项选择题
To be honest, today’s dinner was just so-so. It wasn’t such a good one ______ promised by the boss.
A．that
B．which
C． as
D．what
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