| A.eating | B.playing |
| C.sleeping | D.exercising |
| A.Hot | B.Cool | C.Warm | D.Dry |
| A.Too much air. | B.Not enough fresh air. |
| C.Too much cold air. | D.Too much sleep. |
| A.open your windows | B.not sleep in bed |
| C.sleep ten hours | D.cover your head |
| A.to get their lessons better |
| B.not to cover their heads |
| C.how to go to bed |
| D.to get enough sleep |