His home is _____ his school. So he walks to school.

—What do you think of the report about the air pollution on TV last night?—I think the situation is so        that we should take action to protect the environment.

—Paul isn’t as________as Sandy. He often makes mistakes in his homework.—That’s the main thing.

This kind of food must be ____ than that one.

Jack never stops talking. He is much ___ than his brother.