问题
选择题
If you see someone dropping litter, you can ask him to ______.
[ ]
A. pick it up
B. pick up it
C. put it out
D. put out it
答案
答案：A
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If you see someone dropping litter, you can ask him to ______.
[ ]
A. pick it up
B. pick up it
C. put it out
D. put out it
答案：A