单项选择题

It's been very cold the last few days. I think the winter's ______ already.

A．set in
B．set off
C．set on
D．set out
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单项选择题
That couple has endured so many emotional and financial ______. It is amazing that their marriage has lasted.
A．issues
B．crises
C．subjects
D．questions
单项选择题
Part of the school sports ______ will be used to improve the condition of the football field.
A．money
B．fund
C．bill
D．finance
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