1. _____ (not drop) litter carelessly.
2. Are they interested in _____ (play) badminton?
3. Listen! The music  _____ (sound) beautiful.
4. Tom with his friends  _____ (plant) trees when I saw him.
5. Thousands of visitors go to Zhalong _____ (go) birdwatching every year.
6. Amy studies hard and she is _____ (good) student in her class.
7. It is _____ (possible) for us to finish so much homework in one week.
8. You can't believe what he told you because he is _____ (honest).
9. Peter is much _____ (strong) than Kitty.
10. September is the _____ (nine) month of the year.
11. I would rather _____ (watch) TV than go shopping with you.
12. It is warmer in southern areas than in _____ (north) areas.
13. He failed in this English test because of his _____ (careful) work.
14. What prevented you from _____ (come) to my birthday party yesterday?
15. I like all kinds of music, _____ (include) classical music.

1. I   to   can   have   drink   something  (?)
                                                                          
2. her   happy   the   made   news   very (.)
                                                                          
3. he   when   is   always   drives   careful   he  (.) 
                                                                          
4. carelessly   not   litter   do   drop  (.) 
                                                                           
5. snowstorm   is   what   terrible   it   a  (!) 
                                                                           

1. The meeting _______ (start) at 8:30 am and _______ (finish) at 3:30 p.m.
2. We _______ (have) pizza for dinner tonight .
3. They _______ (see) many different kinds of birds at Beijing Wildlife Park yesterday.
4. If more and more wetlands _______ (disappear), there _______ (be) less and less space for plants,
    animals and birds.
5 ._______ (not drop) litter carelessly.
6. Mr. Green _______ (not go) home until he finished his work.
7. Mother told me _______ (wash) the clothes at home.
8. It's important for the students _______ (write) carefully and clearly.
9. Listen! How beautifully the girls _______ (sing)!
10.               you              (go) to visit your grandfather next week?