问题补充：
Don’t the people who are in trouble. We should be friendly to them.
A. listen to
B. laugh at
C. play with
D. talk to
答案：
A. listen to
(答案→)B. laugh at
C. play with
D. talk to
解析：A. listen to听B. laugh at嘲笑C. play with玩弄D. talk to谈论，句意：不要嘲笑那些处在困境中的人们。我们应该对他们友好。故选B.
