单项选择题

It is desirable that the agreement ______ before the New Year's Day.

A. was signed



B. is signed
C. be signed



D. has been signed
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单项选择题
In addition to ______ the accounts, Polly has to make sure that bills are paid.
A. keep
B. be kept
C. being kept



D. keeping
单项选择题
The consultants' suggestion is that a large sum of money () to against the risk.

A. be set aside
B. would be laid aside
C. should put away
D. should use up
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