单项选择题

Earthworms occur______adequate moisture and food and the necessary soil conditions are found.

A．but
B．where
C．however
D．and

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单项选择题

Jackson is not______as you imagine.

A．so a big fool
B．so big a fool
C．such big a fool
D．a such big fool

单项选择题

Those gifts of rare books that were given to us were deeply______.

A．appreciated
B．approved
C．appealed
D．applied

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