A． He is always laughing at other student
B． He was constantly talking with other students in clas
C． He disturbed the teacher by asking question
D． He is always showing off in the classroo
参考答案B
解析:听力原文
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A． She observed it hersel
B． She heard of it by chanc
C． Several students told he
D． The man confessed it to he
A． listen to her lectures attentively
B． drop the class period
C． ask others after class
D． record the lectures
A． 2.
B． 3.
C． 4.
D． 5.