I can speak English I am at it.A. good wellB. good goodC. well wellD. well good

问题补充：

I can speak English , I am at it.

A. good, well

B. good, good

C. well, well

D. well, good

答案：

A. good, well

B. good, good

C. well, well

(答案→)D. well, good

解析：主要区分good 与well 的区别，well是副词，用来修饰动词speak， be good at 是常用句型结构，故选D。