题目内容
12．-Hurry up!The concert for ten minutes．-OK．I'm coming．（ ）
| A． | has begun | B． | has been on | C． | has put on |
分析 快点！演唱会已经开始10分钟了．--好的，我这就来．
解答 答案：B 根据for ten minutes，可知这是for+时间段，主语为concert，（演唱会），此句表示演唱会已经开始10分钟了，强调状态的持续．一般用于现在完成时（have/has+done），begun和put on为瞬间动词，不可以持续10分钟，故排除A与C．be on为持续性动词，表示开始，指一种状态．故选B．
点评 本题考查现在完成时中的持续性动词与瞬间动词的辨析．for+时间段是做题的关键．
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