China is a _____country, while Japan is a ______country.
-Do you often help your classmate with his English? -No. He learns English _____ .
-Is Frank _____ than you, Jim? -Yes. He is _____ boy in my class.
You should eat _____ fruit and vegetables, but _____ meat. You are too heavy.
The students in the north are going to have ____ winter holiday.
Our teacher asked us ______ the window closed. It was a little hot in the room.