Everyone has got two personalities---the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you can control yourself, but when you're asleep, your sleeping position shows the real you. At night, of course, you often change your sleeping position. The important position that best shows your secret personality is at the beginning of your sleep.
If you go to sleep on your back, you're a very open person. You often trust people and you are easily influenced by fashion or new ideas. You don't like to make people unhappy, so you never express your real feelings. You're quite shy and you aren't very confident.
If you sleep on your stomach, you are a person who likes to keep secrets. You worry a lot and you're always sad. You don’t want to change your ideas, but you are pleased with your life. You usually live for today not for tomorrow.
If you sleep on curled up(蜷缩), you are probably a very nervous person. You're shy and you don't like meeting people. You prefer to be on your own.
If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weaknesses. You're usually careful. You have a confident personality. You sometimes feel worried, but you don't often get unhappy. You always say what you think even if it makes people angry.
When does the sleeping position best show your secret personality?

A．In the daytime.	B．At the beginning of sleep.
C．At night.	D．During the deep sleep.

Tina hardly tells her secrets to her friends. She probably goes to sleep ___________.

A．on curled up	B．on her stomach
C．on her back	D．on her side

What does the passage tell us?

A．Sleeping on your side is the best way of sleeping.

B．Changing positions will cause sleeping problems.

C．Sleeping positions show people’s secret personalities.

D．Enough sheep makes people look healthier and better.