18. His parents were worried that he ______ too much time chatting on line.

17.. Here’s my little cat. Please __________ it while I’m away.

12.. Mr. Smith __________ a talk on country music next Monday.

11.. The children will climb the hill if it __________ tomorrow.

10.Frank ______ a film if he’s free next Saturday.

9.If he 　　　　　harder, he will catch up with us soon.

8. ---Hi, Kate. You look tired. What’s the matter?

　 ---I ______well last night.

7. - What did you do after school yesterday?

- I ____ basketball with my friends.

6. --- How was your weekend?

　 --- Great! We _____ a picnic by the lake.

5. -Where’s your father, Mike?

-He __________ in the kitchen.(cook)