单项选择题

______ at the price list, he'd have known what to expect.

A．Had Mr. Robinson looked
B．If Mr. Robinson looked
C．If Robinson would have looked
D．Had Mr. Robinson been looking
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单项选择题
Establishment of a ______ insurance system is essential for economic reforms.
A．accurate
B．sound
C．undisturbed
D．safe
单项选择题
He was ______ admittance to the party for not being dressed properly.
A．unnoticed
B．ignored
C．denied
D．rejected
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