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    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：--你还在等着打电话吗？--是的，这位女士已经打了二十分钟电话了．

    解答 答案D．"be doing"现在正在做某事；"was/were doing"过去的某个时间点或时间段正在做某事；"have/has done"过去发生的动作对现在的影响；"have/has been doing"表示过去发生的动作一直持续到现在，可能刚刚结束，也可能继续持续下去．根据句意，：--你还在等着打电话吗？--是的，这位女士已经打了二十分钟电话了．说明这位女士已经打了二十分钟电话，有可能还会继续进行下去，故用现在完成进行时，选D．

    点评 本题考查现在完成进行时，要掌握其用法并结合具体的语境选择出正确的选项．

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