Eating     food,take     exercise,and you will be    。

---Do you know ____________ the population of China is?---Yes, it has the __________ population in the world, about 1.3 billion.

---What’s the low-carbon(碳) life style like?----Save        energy, produce            carbon. 

-       time do you want to spend at each place?  -About two hours.

He felt _______ when he saw the _______ film.