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最佳答案：They are always aware of the fact that they are burdened with the important task
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最佳答案：A blackboard full of words.或A blackboard filled with words.
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最佳答案：the teacher asks us to look at the black board in class.
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最佳答案：Please don't write on the blackboard
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最佳答案：tow boad
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最佳答案：Teachers won't write on the blackboard with chalks
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最佳答案：outgoing records我觉得这么写很贴切.希望对你有所帮助.
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最佳答案：sweep the flooropen the windowclose the windowturn on the lightturn off the ligh
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最佳答案：1.Firstly,I will write some questions on the blackboard,then dividing the blackb
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最佳答案：The desk is in front of the blackboard.Mary faces to the blackboard.I sat at the