MR. Lin’s son is pretty good drawing pictures and won many prizes.A. inB. atC. onD. of

问题补充：

MR. Lin’s son is pretty good drawing pictures and won many prizes.

A. in

B. at

C. on

D. of

答案：

A. in

(答案→)B. at

C. on

D. of

解析：句意：林先生的儿子非常擅长画画，而且获得了很多奖项。be good at doing sth 擅长于做某事，故选B