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最佳答案：1.I have been collected about threee hundred stamps so far2.I think that I colle
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最佳答案：Sam (has collected) coins since he (was) twenty years oldWe (run out of) room to
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最佳答案：From now on,it has been planted two hundred trees
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最佳答案：I am afraid that a delay in the shipment schedule is unavoidable as there is sti
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最佳答案：You have been collecting more than one hundred and fifty stamps for more than th
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最佳答案：Until now on me the high school more than 2 months,an initial month I always has