—Have you seenbook on the desk?—Is itEnglish book? I saw it just now.A. the; / B. /; theC.

问题补充：

—Have you seenbook on the desk?

—Is itEnglish book? I saw it just now.

A. the; /

B. /; the

C. the, an

D. a; /

答案：

A. the; /

B. /; the

(答案→)C. the, an

D. a; /

解析：

试题分析: 句意：你看到书桌上的书了吗？是一本英语书吗？定冠词特指，不定冠词泛指，an用于元音音标前，a用于辅音音标前；book on the desk特指，English book英语书，泛指，故选C.