-- Mum, must I stay there the whole day?-- No, you ______ . You ______ come back after lunch, if you like.A. mustn't; canB. needn't; mustC. needn't; may
—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? ------___________.