单项选择题
A. that B. it C. so D. this
A．When you run out of money, you can ask your partner to call back. B．Telephone books in the US have different colors. C．The state of Oregon has several area codes. D．An area code is necessary in making a long-distance call.
A．different people have different ideas about the same thing B．Westerners culture is similar to our Chinese culture C．in general, Westerners and the Chinese don’t like pigs D．all of the Chinese like pigs better than Westerners