Here are the verbs filled in correctly based on whether they need to be in the Future Simple or Present Simple tense:

10. I must clean the kitchen before my mother **gets** here.
11. I **will come** to meet you at the station next weekend.
12. I **will wait** until you’re finished – then we can go.
13. John will study until he **knows** all the answers.
14. She thinks that it **will rain** next weekend.
15. What do you want to do after the class **finishes**?
16. My aunt **plays** the guitar once a week.
17. Don't worry. I **will dance** with you next Sunday.
18. Duong says he loves horse-riding but he **will not continue** this hobby from next year.