乌鲁木齐五十二中
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  • 科目:英语
  • 题型:选择题
  • 难度:中等
  • 人气:137

To keep our city beautiful, the _____are always very busy in the streets.We shouldn't throw rubbish everywhere.(  )

A.

policemen

B.

cleaners

C.

drivers

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To keep our city beautiful, th