根据句意用所给单词的适当形式填空

问题描述:

根据句意用所给单词的适当形式填空
Who___(be)these girl?
Those___(be)my dictionaries.
What___(be)these?
This is Harry’s pen and___(this)are Lily’s books.
Are ___(is) pens?

Who are these girls?( 这些女孩儿都是谁)
Those are my dictionaries( 那些是我的字典,those和these都表示复数)
What are these?这些是什么?
This is Harry's pen and these are Lily's books(这是哈利的钢笔,这些是莉莉的书本,前面的be动词是are,所以用复数的these)
Are these pens?这些是笔吗?