按要求完成句子。
1.Is this your brother? (改为陈述句)
____________ ____________ my ____________.
2.This is my father. That is my mother.(合并为一句话)
____________ is my ____________ ____________ that is my ____________.
3.There are three people in my family.(对画线部分提问)
How many ____________ are there in your ____________?
4.The girl has a sister.(改为否定句)
The girl ____________ ____________ a ____________.
5.The boy has a grandpa.(改为一般疑问句)
____________ the boy ____________ a ____________?