10. Mr. Green won’t go to the concert ____ he is really busy.

　Key:

9. He doesn’t like talking or laughing. He’s ____ and quiet.

8. Last Saturday my best friend ____ me with my math.

7. He is very funny. He always makes his classmates ____.

6. Can you come over to ____ our science report?

5. On weekends she always ____ her brother.

4. The radio says it will stop ____.

3. Could you ____ us your family photos?

2. Thanks for ____ me to your birthday party.

serious, laugh, babysit, invite, discuss, help, smart, because, rain, show

1. Lisa is very ____. She studies very well.