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--- Hey, Mary, your backpack looks nice. When did you buy it.
--- I ____ it for two weeks.

A．had B．bought C．have had D．have bought

C

解析試題分析：句意：--嗨，瑪麗，你的背包很漂亮，你什么時(shí)候買(mǎi)的？--我買(mǎi)了有兩個(gè)星期了。根據(jù)句意，說(shuō)明買(mǎi)背包這個(gè)動(dòng)作是從過(guò)去到現(xiàn)在持續(xù)了兩個(gè)星期，用現(xiàn)在完成時(shí)，而且因?yàn)閎uy是短暫動(dòng)詞，不能和一段時(shí)間連用，所以用have這個(gè)動(dòng)作，選C。
考點(diǎn)：考查時(shí)態(tài)

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