单项选择题

A ______ of small glittering fish swam by.

A．pack
B．swarm
C．flock
D．school
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单项选择题
Mortgages are hard to come ______ since banks are more cautious.
A．with
B．in
C．by
D．through
单项选择题
His friends came in great numbers to ______ after his health and he felt quite comforted by their companionship.
A．inquire
B．investigate
C．require
D．request
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