单项选择题

It was so cold that they kept the fire ______ all night.

A．to burn
B．burn
C．burning
D．burned
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单项选择题
______ food you've cooked!
A．How a nice
B．What a nice
C．How nice
D．What nice
单项选择题
The library needs ______, but it'll have to wait until Sunday.
A．cleaning
B．be cleaned
C．clean
D．being cleaned
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