单项选择题

How long may I __________ this book

A．borrow
B．lend
C．keep
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单项选择题
__________ boy and __________ girl knows what they should do next.
A．Both; /
B．No; each
C．Every; every
单项选择题
― __________ will Jim be back ―In a few weeks.
A．How long
B．How often
C．How soon
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