Students are often told _____ at people who are in trouble.[ ]A. not to smile B. to smile C. not to

题目简介

Students are often told _____ at people who are in trouble.[ ]A. not to smile B. to smile C. not to

题目详情

Students are often told _____ at people who are in trouble.
[     ]
A. not to smile
B. to smile
C. not to laugh
D. to laugh
题型:单选题难度:中档来源:同步题

答案

C

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