The book __ by him is difficult __.A．wrote; understandingB．written; to be unders

题干

The book __ by him is difficult __.

A．wrote; understanding	B．written; to be understood
C．writing; understand	D．written; to understand

上一题下一题 0.85难度单项选择更新时间:2010-06-26 10:28:51

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