I usually do my homework _____than Mary. But she makes fewer mistakes because she is_____.

—Why don’t you drive to work today?—Sometimes riding is even          than driving during the busy traffic time.

Mr. Fat has _______ money than Mr. Thin, but he has _______ friends.

—Excuse me，sir. The shoes are a bit small for me. —Don’t worry. I’ll change them for a     size

—Why do you like living in the countryside? —Because there’s _______ noise and _______ cars there.