he is not so honest a boy.A. Be honestB. Be honestyC. To speaking honestlyD. To be hones

问题补充：

, he is not so honest a boy.

A. Be honest

B. Be honesty

C. To speaking honestly

D. To be honest

答案：

A. Be honest

B. Be honesty

C. To speaking honestly

(答案→)D. To be honest

解析：考查固定结构。to be honest意为：老实说；句意：老实说。他不是一个诚实的男孩。