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        1. We ___________ for a long time. Shall we play for a while?
          A.studyB.StudiedC.have studiedD.a(chǎn)re studying
          C

          試題分析:句意:我們已經(jīng)學(xué)習(xí)了這么長(zhǎng)時(shí)間了。玩一會(huì)兒好嗎?結(jié)合語境可知前文描述的是一直持續(xù)到現(xiàn)在的動(dòng)作,故用現(xiàn)在完成時(shí)態(tài),選C。
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