He likesmusic so much that I think it right to buy himMP3 asbirthday present.A. the; an; a

问题补充：

He likesmusic so much that I think it right to buy himMP3 asbirthday present.

A. the; an; a

B. 不填；an; the

C. 不填；an；a

D. the；a; a

答案：

A. the; an; a

(答案→)B. 不填；an; the

C. 不填；an；a

D. the；a; a

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