10. I ______ my bike, so I have to walk to school. (lose)
11. He ______ down and began to read his newspaper. (sit)
12. He is not here. He ______ to the post office. (go)
13. He is very hungry. He ______ anything for three days. (not eat)
14. I ______ with you if I have time. (go)
15. We will go to the cinema if it ______ tomorrow. (rain)
16. I will tell her the news when she ______ to see me next week. (come)
17. "When ______ you ______ the car?" "In 1998." (buy)
18. We ______ good friends since we met at school. (be)
19. What ______ you ______ at five yesterday afternoon? (do)
20. The bike is nice. How much _____ it _____? (cost