—Ann, I am worried I’m getting fatter. What shall I do?—I think you should eat________food and do more exercise.

This umbrella is____that one,but____than that one.

— How clever you are! How can I know as much as you?— ______ you read, _______ you can learn.

Lanzhou is the only capital city that the Yellow River, the second ________ river in China, passes through.。

—What is special about your father? ---His dishes are ______in the world.