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最佳答案：end over backwards
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最佳答案：Jim is making every effort to prepare the English Evening.
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最佳答案：as long as
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最佳答案：专家的建议是我们该竭尽全力来禁止濒危动物被杀 The expert's suggestion is that we should do what we can
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最佳答案：恩,对的,这句句子没有问题.
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最佳答案：The teacher came over to her with a smile!I will try my best to catch up with ot
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最佳答案：Whenever you are in trouble,friends will do their best to help you.
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最佳答案：I can allow myself to not smart enough, but never allow ourselves to not do ever
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最佳答案：These kids whose shool buildings all collapsed in the earthquake were sent to th
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最佳答案：1.I tried my best to do the job well,because I knew I would get nothing without