单项选择题

While they were away on vocation, they allowed their mail to (be accumulated) at the post office.

A．be decreased
B．be delivered
C．be piled up
D．be returned
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单项选择题
It is his (assumption) of a false theory that made him pay a high price.
A．fear
B．belief
C．disappointment
D．dream
单项选择题
She (longed) to be envied and sought after.
A．hoped
B．wanted
C．was eager
D．wished
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