吉林医药卫生学校 / 英语
4.It`s bad manners to laugh _____ others when they are _____ trouble.
A. at ,in
B. over ,at
C. to, with
D. with ,on
A. at ,in
B. over ,at
C. to, with
D. with ,on
参考答案：
佳题速递：