题目内容
选择填空:
You'd better ______ the paper onto the ground.
[ ]
A. not throwing B. not to throw
C. not throw D. don't throw
答案:C
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题目内容
选择填空:
You'd better ______ the paper onto the ground.
[ ]
A. not throwing B. not to throw
C. not throw D. don't throw