单项选择题

They worked ______ the cost of the holiday and decided if they could afford it.

A．at
B．out
C．off
D．for
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单项选择题
Before taking such a test, one had better ______ his or her vocabulary.
A．outline
B．translate
C．revise
D．brush up
单项选择题
Everything I've described went wrong. ______, the whole affair was a disaster.
A．In kind
B．In all
C．In short
D．In general
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