This my sister.改为一般疑问句并作肯定回答 That's

This my sister.改为一般疑问句并作肯定回答 That's ①This is my sister.(改为一般疑问句并作肯定回答) ②That's my bro This is my sister.改为一般疑问句并做肯定回答 That's my brother改为否定句 these are my sister`s pink skirts 改为一般疑问句并作肯定回答 My sister has some baseball bats.（改为一般疑问句,并作肯定回答） Those are Li Lei's brother and sister改为一般疑问句并作肯定回答 This is my sister.改为一般疑问句并做肯定回答 This is my sister,Jenny.(改为一般疑问句并作否定回答） This is my sister.(改为一般疑问句,并作否定回答) This is my dictionary.(改为一般疑问句,并作肯定回答） This is my book.改为一般疑问句,并作肯定或否定句回答 This is my pencil 改为一般疑问句 并作肯定回答