题目内容：

He is cleaning the floor.They are playing basketball on theplayground.I like swimming in Summer.
Mom can cook meals.
Thw boy looks sad.
I am a primary school student.
She feels thirsty.
全部改为一般疑问句,并做肯定和否定回答.

优质解答

您好,我直接写答案了：
1. Is he cleaning the floor?
Yes,he is.
No,he isn't.

2. Are they playing basketball on theplayground?
Yes,they are.
No,they aren't

3.Do you like swimming in Summer?
Yes,I am.
No,I am not

4.Can mom cook meals?
Yes,she can.
No,she can't

5.Does the boy look sad?
Yes,he does
No,he doesn't

6.Are you a primary school student?
Yes,I am
No,I am not

7.Does she feel thirsty?
Yes,she does
No,she doesn't

解答完毕,求采纳O(∩_∩)O~~