---You should            your teacher’s advice if you want to improve your science.---That sounds great.

Millie is getting on well with her friends but she is a little selfish________.

There is ___________ on this book. Don’t take it.

Of all my classmates,     often goes to the Internet café to kill time.

---Can you tell me something about Liu Yang?---Oh, she _____ the first Chinese woman astronaut to get into space.