Lu Xun was ___ the greatest writer in the history of Chinese literature.

By the year of 2053 there will be 487 million aged people in China，means that one third of the population will be over 60.

He is so kind a person that he takes a friendly attitude_____us

Could you tell me how your father usually goes to work?—YesIf it is fine, he ________ to his office

icket, unless stated __________, admits only one person.