单项选择题

Mary got a cold so she ______ stay in bed right now.

A．can
B．needs
C．may
D．could
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单项选择题
She bought a new hike last Sunday, because her old one ______.
A．had stolen
B．was stolen
C．had been stolen
D．stolen
单项选择题
Will you show me the boy ______ mother is working in our department
A．his
B．whose
C．who
D．that
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