2. Seeing that men have been sent to the moon in.....................

3. Scienctists want to send people to the ...................

4.What does survive mean ?

5. How many kilometers does it get from earth to the Mars ?

6. What does health mean ?

7. Sitting for a long time can be very_____ for you.

8. A standing desk is just like a regular desk except that it is_______.

9. What does ruin mean ?

10. What does habit mean ?

11. What does take care of mean ?

12. Tiny home are also______ for the environment.

13. What does energy mean ?

14. One reason people like tiny homes is because they are_________.

15. What does sufficient mean ?

16. What does cousin mean ?

17. The city is about 100_______ from here.

18. My____ is the son of my uncle,Jason.

19. My cousins are living in a ______ near the beach.

20. The_______kettle won't work because the power is out.