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