A person with good manners never laughs
题型:选择题
问题:
A person with good manners never laughs ____ people when they are ____ trouble . [ ]
A. on; in
B. in; at
C. on; at
D. at; in
A person with good manners never laughs ____ people when they are ____ trouble . [ ]
A. on; in
B. in; at
C. on; at
D. at; in