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  • 更新 2022-09-03
  • 科目 英语
  • 题型 未知题型
  • 难度 中等
  • 浏览 1866

用适当的介词填空。
He can be happy and help others  ______ the same time.
You can ask ______ help when you are in trouble.
The boy could give out food _______ the poor people.
The summer holiday is one month _______ now.
We should listen _______ the teacher carefully in class.
It’s our duty to care ______ the old.

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用适当的介词填空。Hecanbehappyandhelpot