this machine___.it hasn't worked for yearsdidn't work wasn't working doesn't work isn't workingw为什么

this machine___.it hasn't worked for yearsdidn't work wasn't working doesn't work isn't workingw为什么
this machine___.it hasn't worked for years
didn't work wasn't working doesn't work isn't working
w为什么

this machine___.it hasn't worked for yearsdidn't work wasn't working doesn't work isn't workingw为什么
doesn't work,这个机器坏了,它已经坏了很多年了,一直是坏的,用一般现在时

did not是过去时，即过去某个时间的瞬间动作，和现在没有关系，他的意思只是指过去不工作，置于现在工不工作不确定，而题目后面的完成时明确表明一直到现在都不工作，所以两者是矛盾的，不能选过去时