单项选择题

We all enjoyed ______ on the farm.

A． works
B． working
C． work
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单项选择题
Tony was ______ honest boy. He found a wallet at ______ school gate and gave it to its owner.
A． a; the
B． an; the
C． an; /
单项选择题
Tom told Mary that he ______ a mistake.
A． makes
B． made
C． had made
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