You were out when I dropped in at your house yesterday.—Oh, I________ for a friend from Beijing at the railway station

of __________ is the basic requirement for people working in the serviceindustry, such as education and health care.

The population of China is _______ than that of _______country in the world.

30. —______ you pass the examination on the first attempt?—Of course. You know, I have been preparing for it for a long time.

Are there tomatoes at home，Mama–No，there aren’t But there are ________ carrots．