摘要：( ) --- Could you find an answer to your problem in the book I gave you? --- I looked at it, but it wasn’t really . A. much used B. able to use C. of useful D. of much use
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—Could you find an answer to your problem in the book I gave you?
—I looked at it, but it wasn't really ________.
[ ]
A．of much use
B．much used
C．able to use
D．of useful