选出下列各项中加点的字解释有误的一项：（ ）

A．敢问死？曰：“未知生，焉知死？”（谦词，自言冒昧之词，也含有原、希望的意思）

B．敢以烦执事（勇敢）

C．人不敢与忤视（动词，有勇气做，敢于）

D．进止敢自专（副词，表反洁语气，为“岂敢、不敢”的省略词）

4．Tom told me that after a few years in China not only____his Chinese, and that he had also obtained more interest.

A．does he improve

B．had he improved

C．he had improved

D．he will improve