单项选择题

We've ______ all our time and effort in this plan, and we don't want it to fail.

A．invested
B．exhausted
C．devoted
D．assigned
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单项选择题
You should know ______ to spend all your money on those impractical fancy goods.
A．other than
B．rather than
C．more than
D．better than
单项选择题
Did you mean I should keep the receipt I'm afraid I have ______.
A．run it over
B．tom it up
C．taken it apart
D．shaken it off
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