—Have you seen book on the desk?—Is it English book? I saw it just now.A. the; / B. /; the

—Have you seen book on the desk?
—Is it English book? I saw it just now.
A. the; /
B. /; the
C. the, an
D. a; /

A. the; / B. /; the(答案→)C. the, anD. a; /解析：句意：——你看见一本书在桌子上吗？——是本英语书吗？我刚刚看到它。询问看到桌子上那本书是特指，故用定冠词。询问它是不是本英语书表明不确定，故用不定冠词。

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