—Is David a man with good manners ?—I don’t think so . As a matter of fact , he is _____but polite .
It’s quite warm __December in China.
The mountains look grey ___ the blue sky.
Xiao Li didn’t come to our party. We all fell sorry __ him.
Taiwan is an island that lies ___ the southeast coast of China.
---Next Monday is my birthday. ---Is that so? ____ ---Thank you.