问题
选择题
We are told everywhere. It's our duty to keep our school clean and tidy. [ ]
A. not to make much noise
B. to throw waster paper
C. to draw
D. not to spit
答案
答案：D
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We are told everywhere. It's our duty to keep our school clean and tidy. [ ]
A. not to make much noise
B. to throw waster paper
C. to draw
D. not to spit
答案：D