A.a story book | B.a guide book |
C.a sports newspaper | D.a science magazine |
A.on curled up | B.on her stomach |
C.on her back | D.on her side |
A.only in a normal night |
B.only when you go to sleep |
C.only when you refuse to show yourself to the world |
D. only when you change sleeping position |
A.Sleeping positions show people’s secret personalities. |
B.Changing positions will cause sleeping problems. |
C.Sleeping on your side is the best way of sleeping. |
D.Enough sleep makes people look better and healthier. |