Allthestudentsatschoolarerequiredto

问题详情：

 All the students at school are required to ____ lectures by the experts on how to save

themselves when accidents occur, such as fires, a gas leak and so on.

   A. join in    B. take part in  C. attend   D. participate in  

【回答】

C

知识点：动词

题型：选择题