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    精英家教网 > 高中英语 > 题目详情
    This machine __________ It has worked for years.
    A．didn’t work
    		B．wasn’t working
    		C．doesn’t work
    		D．isn’t working
    C
    时态题。根据it has worked for years可知机器工作到了现在所以“不工作”用一般现在时描述现在的情况。
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