单项选择题

When ______ the education systems of China and Britain, the professor gave no comment.

A．being asked to compare
B．asked him to compare
C．asking him to compare
D．asked to compare
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单项选择题
He was ______ admittance to the party for not being dressed properly.
A．unnoticed
B．ignored
C．denied
D．rejected
单项选择题
Salesmanship refers to the ability to ______ people to willingly buy products.
A．persuade
B．force
C．cause
D．recommend
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