单项选择题

Mary （） in bed all day because she had a fever.

A．lay
B．has laid
C．has lain
D．laid

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单项选择题
______ he come, what ______ you say to him
A．If, will
B．Should, would
C．When, would
D．Would, do
单项选择题
Would you mind ______ alone at home tonight, Tom
A．leaving
B．being left
C．to leave
D．to be left
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