To help Tommy learn better, his parents have done they could:cards, tapes,special learning centers,in short, everything they can think of. A both B all C none D neither
— will your brother be back ? —In two weeks.
—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?------___________.