单项选择题

You ______ that letter to James. However, you didn't.

A．ought to write
B．ought to have written
C．should write
D．should be writing
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单项选择题
His honesty is ______; nobody can doubt it.
A．in question
B．out of the question
C．beside the question
D．without question
单项选择题
The current general slackness of the market has prevented us from ______ new orders with you.
A．placing.
B．putting
C．arranging
D．providing
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