He often practices English chatting with his pen pal in Australia.A. byB. inC. withD. for

问题补充：

He often practices English chatting with his pen pal in Australia.

A. by

B. in

C. with

D. for

答案：

(答案→)A. by

B. in

C. with

D. for

解析：本题考查的是do sth by doing sth，表示做某件事是通过做某事，故选答案为A