What honest boy! And he is best student of all.A. a; aB. an; the C. a; theD. the; the

What honest boy! And he is best student of all.
A. a; a
B. an; the
C. a; the
D. the; the

A. a; a(答案→)B. an; the C. a; theD. the; the解析：考查冠词。句意：多么诚实的一个男孩！他是所有学生中最好的。一个诚实的男孩，honest以元音开头，所以用an修饰；best，最高级前一般用the修饰。所以选B。

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