问题
选择题
—Must we clean the classroom now?
—No, you needn't. It _____ after school. [ ]
A. may clean
B. must clean
C. need be cleaned
D. can be cleaned
答案
答案：D
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—Must we clean the classroom now?
—No, you needn't. It _____ after school. [ ]
A. may clean
B. must clean
C. need be cleaned
D. can be cleaned
答案：D