9．-Are you still waiting to make a phone call？
-Yes．This woman       on the phone for the last twenty minutes．（　�。�
A．is talkingB．was talking
C．has talkedD．has been talking

分析 句意：--你還在等著打電話嗎？--是的，這位女士已經(jīng)打了二十分鐘電話了．

解答 答案D．"be doing"現(xiàn)在正在做某事；"was/were doing"過去的某個(gè)時(shí)間點(diǎn)或時(shí)間段正在做某事；"have/has done"過去發(fā)生的動(dòng)作對(duì)現(xiàn)在的影響；"have/has been doing"表示過去發(fā)生的動(dòng)作一直持續(xù)到現(xiàn)在，可能剛剛結(jié)束，也可能繼續(xù)持續(xù)下去．根據(jù)句意，：--你還在等著打電話嗎？--是的，這位女士已經(jīng)打了二十分鐘電話了．說明這位女士已經(jīng)打了二十分鐘電話，有可能還會(huì)繼續(xù)進(jìn)行下去，故用現(xiàn)在完成進(jìn)行時(shí)，選D．

點(diǎn)評(píng) 本題考查現(xiàn)在完成進(jìn)行時(shí)，要掌握其用法并結(jié)合具體的語境選擇出正確的選項(xiàng)．

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