Question

2. Why is she looking at me         ？

I've never seen her before in my life. (know)

她为什么盯着我，仿佛认识我？可我以前从没见过她。

Answer 1

2. as though/as if she knew me本题考查由as though/as if引起的虚拟语气。题干谓语是is looking at ,表明这里是对现在的虚拟，因此，从句谓语动词用过去式。