单项选择题

Since ancient times people have found various ways to preserve meat.

A．eat
B．cook
C．freeze
D．keep
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单项选择题
The two girls look alike.
A．beautiful
B．similar
C．pretty
D．attractive
单项选择题
We packed up the things we had accumulated (积累) over the last three years and left.
A．late
B．recent
C．past
D．final
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