题目内容
() 10. 一May we leave the classroom now?
一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
10. B
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题目内容
() 10. 一May we leave the classroom now?
一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