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最佳答案：Be careful!pay attention to safety
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最佳答案：Summer holiday is coming.Our students will have more time for our hobbies .But w
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最佳答案：we must pay attention to our safety.
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最佳答案：emind us of being careful
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最佳答案：please be careful
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最佳答案：Accidents are today's most frequent killers so far as children are concerned. An
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最佳答案：So,we called on all of you to pay more attention to safety while driving.
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最佳答案：Be careful in your trip,and have a good time（/enjoy yourself）!
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最佳答案：You must be careful when you go to school and come back home after school becaus
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最佳答案：The picnic will be over at 11：30， and be careful on your way home.