单项选择题

Since our house was built 6 years ago its ______ are in need of repairing.

A．rooves
B．roof
C．roofes
D．roofs
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单项选择题
The scientists and his achievements ______ you told me about are loved by us all.
A．which
B．who
C．that
D．whose
单项选择题
She seldom goes shopping on weekends, ______.
A．so do her friends
B．nor do her husband
C．so does her parents
D．neither does her sister
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