改下下列英语句子,

题目

改下下列英语句子,
1.Is she your sister?做肯定回答
2.Are these his grandparents?做肯定回答
3.That is my school.改为一般疑问句
4.Those are oranges?改为一般疑问句
5.These are lucy’s maps改为单数句
5.That is a ruler改为复数句
6.They are my father and mother 对my father and mother提问

答案

1.)Yes,she is.
2.)Yes,these are.
3.)Is that your school?
4.)Are those oranges?
5)This is Lucy's map.
6.)Those are rulers.
7.)Who are they?