摘要： -Must they clean the classroom now ? -- No, they . A. can’t B. needn’t C. don’t D. mustn’t
网址：http://m.1010jiajiao.com/timu3_id_2365114[举报]
?Must they clean the classroom now?
?No, they ________.
A. can't
B. needn't
C. don't
D. mustn't
查看习题详情和答案>>— Must they clean and tidy the classroom now?
— No, they . It after school in the afternoon.
A. mustn’t; must clean B. needn’t; must clean
C. mustn’t; need be cleaned D. don’t have to; can be cleaned
查看习题详情和答案>>