单项选择题

Some elderly people are ______ their beds at hospital. They need our help.

A．confined to
B．locked to
C．tied with
D．limited by
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单项选择题
Every sentence in a paragraph must be relevant ______ the topic sentence.
A．to
B．with
C．by
D．of
单项选择题
Those gifts of rare books that were given to us were deeply ______.
A．appealed
B．appreciated
C．applied
D．approved
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