一What do you usually do when you see others ________?
| 一What do you usually do when you see others ________? 一I usually stop them and ________. |
| [ ] |
| A. litter; pick it up B. littering; pick up it C. litter; pick it D. littering; pick it up |
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What do you usually do when it
1年前1个回答
你能帮帮他们吗