this is my ruler改为复数句肿么改啊?

问题描述:

this is my ruler改为复数句肿么改啊?
these are his pens.改为一般疑问句 Are those your parents?作肯定回答‘ those are her brothers.改为单数句 【they are】 my grandparents.对括号部分提问 () ()your grandparents?

these are my rulers.
Are these his pens?
Yes, they are.
He is her brother.
Who are
望采纳哦