—Why do you come here?—We are here to ____ the public _____ service.
—You were out when I dropped by your house. — Oh, I_________ in Zhongbai Supermarket with my parents.
—Maria is wanted on the telephone. Where is she? —She _________ the library. You can find her there.
Which of the following signs can be seen on the door of a shopping mall?
---Can you tell me what the Olympic motto(宗旨) is?------___________.
---Can you tell me something about Liu Yang?---Oh, she _____ the first Chinese woman astronaut to get into space.