题目内容
– How long has Robot _________ ?
– Since2004.
| A．been to Beijing | B．become a policeman |
| C．joined the Art Club | D．studied in this school |
D
解析试题分析：been to Beijing去了北京；become a policeman成为一个警察；joined the Art Club加入美术俱乐部；studied in this school在这所学校学习。根据下文，自从2004年以来。可知上文描述的是从过去一直持续到现在的动作，been to表示去了，已经回来，选项BC表示瞬间动作，故选D。
考点：考查现在完成时态
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