2.It takes a lot of practice to be __ speaking in public.

2021安徽专升本大学英语试题--单选题

2.It takes a lot of practice to be __ speaking in public.

A. slow in 

B.useful

C.good at

D. free from

参考答案:C

好老师解析：本题考查固定搭配。

好老师参考题型：补充资料常考动词短语中涉及该用法。