--- Steve is good at writing stories. --- So he is. But he writes ____ than us. So he can get good grades in writing.

---What do you think of Andy’s singing? --- No one does       .

The boy is      in our class.

Jack is 1.8 meters tall and he is __________boy in our class. 

–There is thick haze(雾霾)around many cities in China recently. What do you think of it ? ---I think __________ cars we drive, the less pollution the city has.