:put in: at,on,in,after,before. 1. pete gets up seven o'clock. 2. we clean our teeth the morning. 3. they play leafrog classes. 4. sunday we shall go to the zoo. 5. we never drink coffee class. 6. we always meet classes in the morning.

1. Pete gets up AT seven o'clock.
2. We clean our teeth IN the morning. 
3. They play leafrog AFTER classes.
4. ON Sunday we shall go to the zoo. 
5. We never drink coffee IN class.
6. We always meet BEFORE classes in the morning.