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最佳答案：This problem is difficult for him .
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最佳答案：It's question was difficult to answer,so most of them kept silent.
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最佳答案：反意疑问句中如果前面的陈述是【否定】的,答语yes就表示“不”,no就表示“是的”.
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最佳答案：1.To stay or to leave,it's up to you.2.I feel it's difficult to answer the quest
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最佳答案：1、小心不要撞掉桌上的杯子.1. Be careful! Don't knock off the glass on the table.2、老师给我们讲了一个有
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最佳答案：What is happiness?Maybe it's too difficult to answer the question because it's t