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It's the third time that I_____(explain)the problem to you

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2 | 2013-3-29 22:43:58 | 显示全部楼层 |阅读模式

这是固定句型结构中的时态搭配——【某人第几次做某事】 It /That/This【is 】the...time that sb 【have done sth】 It /That/This【was】the...time that sb 【had done sth】填【have explained】希望能够帮到你哦~~~~~~~~...

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