Lucy____(doesn't/don't) watch TV now.选词填空.答案是don't.我觉得哪个也不对,应该用isn't吧

Lucy____(doesn't/don't) watch TV now.选词填空.答案是don't.我觉得哪个也不对,应该用isn't吧
Lucy____(doesn't/don't) watch TV now.选词填空.答案是don't.我觉得哪个也不对,应该用isn't吧

Lucy____(doesn't/don't) watch TV now.选词填空.答案是don't.我觉得哪个也不对,应该用isn't吧
这题目有问题,因为有now是要用isn't,可是watch是原型,Lucy是第三人称单数,所以如果一定要选的话只能用doesn't