A person with good manners never laughs      people when they are in trouble.

A．on        B．at         C．of         D．to

完形填空

　　Manners are important to keep good relations (关系) among people. 1 likes a person with bad manners. A person with 2 manners never 3 people when they are 4 trouble. Instead, he tries to help them. When he asks for something, he says “Please”. And when he 5 others' help, he usually says “Thank you”. He does not interrupt (打扰) others when they are talking. He does not 6 loudly in public. When he 7 , he uses a handkerchief (手绢). 8 a student, it is bad manners to come late to class. 9 you are late, you should say 10 to the teacher.