lucy has some pens.对 some pen 提问

问题描述:

lucy has some pens.对 some pen 提问
Iucy has some pens.对 some pen 提问 可以这样回答吗?what does Lucy has?为什么?

what does lucy have?为什么不用has 而用havedo是助动词后面接原形has的原形是have