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单项选择题

She could do her homework herself (她自己), so she ______ any help.

A．need not
B．not needed
C．didn't need

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热门试题

单项选择题If it snows tomorrow, we ______ play with a snowman.

A．will be able to
B．can be able to
C．can able to

单项选择题These machines must ______ before they are used.

A．check
B．be checked
C．are checked