.If you compare food costs today ______ of a year ago, you will find the difference.
No driving after drinking is a rule that every driver _______ obey in our country.
It was a nice meal, _______a little expensive.
It ’s well-known that ________ information is very important to businessmen.
People usually believe thatboy must learn to stand up and fight likeman.
A poet and artist _____ coming to speak to us about Chinese literature and painting tomorrow afternoon.