Ann is a top student in our school and she does well in her subjects.A. is good toB. is go

问题补充：

Ann is a top student in our school and she does well in her subjects.

A. is good to

B. is good at

C. is good for

D. is good with

答案：

A. is good to

(答案→)B. is good at

C. is good for

D. is good with

解析：be good at =do well in,故选B