题目内容
The factory _________ since two years ago.
| A．has been open | B．has opened |
| C．was open | D．opened |
A
解析试题分析：句意：这家工厂自从两年前就开放了。结合语境可知本句描述的是一直持续到现在的动作，故用现在完成时态。选项B表示瞬间动作，故选A。
考点：考查时态及动词辨析
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