用所给词的适当形式填空。
（1）My hobby is (collect) stamps.
（2）Summer is the (hot) season of the year.
（3）I (go) to the cinema yesterday.
（4）We should keep water (clean).
（5）Look! the children (play) football now.

( ) Different people have different .
A. hobby B. hobbies C. a hobby

( ) We have four classes 8:00 11:30 in the morning
A. from…to B. at…to C. from…and

( )Some boys enjoy music.
A .listen to B. listens to C. listening to

( )August is the month of the year.
A. eight B. eighth C. twelfth