1. We'll be in our office tonight.

2. She won't be angry with you.

3. He'll come next week.

4. The book won't cost too much.

5. There will be a show here tomorrow.

6. There won't be any rice here today.

7. Will you be at home this evening？

8. Will they come next week？

9. Will there be a party next month？

10. I am going to be a doctor when I grow up.

11. I am going to be an actor when I grow up.

12. I am going to be a computer programmer when I grow up.

13. I am going to be an engineer when I grow up.

14. I am going to be a teacher when I grow up.

15. I am going to be a basketball player when I grow up.

16. I am going to go swimming tomorrow.

17. She will go shopping.

18. He will go shopping tomorrow.

19. We are going to the park next Sunday.

20. It's going to rain.

这些句子涵盖了各种将来时态的用法，包括be going to结构和will结构。希望这些例子对你有所帮助。