Based on Sarah and Andy's plan for the week, here are the answers to the questions:

6. What is Sarah doing tomorrow?
- She is having piano practice tomorrow (Tuesday).

7. Where is Sarah going on Saturday?
- She is going to the concert with her sister on Saturday.

8. When are Sarah and Andy playing basketball?
- They are both playing basketball on Wednesday.

9. Who is Andy playing soccer with on Sunday?
- He is playing soccer with Li on Sunday.

10. What are you doing on Thursday?
- [Your activity for Thursday here.]

Feel free to fill in your own plans for Thursday!