我的耳机以前工作正常，现在不能用了 。

My headset worked before but now it's not working.

youdao

Doesnt work也可以选，可以看成是正确答案。实际上，这里使用一般现在时的话，表明我是要告诉售货员，这台收音机现在不能用了。

"Doesn't work" (answer d) can also be used and would be considered correct-in effect, it is present tense where I am telling the salesman that the radio doesn't work now.

youdao

现在，它不能用了。

It is out of use now.

youdao