He is cleaning the floor.They are playing basketball on theplayground.I like swimming in Summer.

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

2. Are theyplaying 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~~