what's this in english a.It's pen b.It's

问题描述:

what's this in english a.It's pen b.It's
a pen c.I like pen 选哪个为什么?

what's this in english 的回答是这样的
如果是可数名词,是要加a或者an的
比如
what 's this in English?
It is a book/ It is an apple.
如果是不可数名词,就不要加,
It is tea/It is bread.