---Mayweleavetheclassroomnow? ---No;you

问题详情：

--- May we leave the classroom now?

  --- No; you _____. You ______ to leave until the bell rings.

  A. can’t; are allowed           B. mustn’t; aren’t allowed

  C. needn’t; are allowed       D. needn’t; aren’t allowed

【回答】

B

知识点：相似 相近词比较

题型：选择题