The potato chips have been in the paper bag for half an hour. They are not _____ any more.
--- Could you tell me ________?--- It’s twenty minutes by underground.
--- What do the police think about the murder?--- I’m not sure. But I want anyone who ______ the clue to contact the police actively.
--- What did he say about his visit to Australia?--- He said he would go there ______.
--- Did you catch the train to Beijing last night?--- No. It ______ for ten minutes by the time I got to the station.
--- ______ does this scarf belong to?--- Let me see. Oh, it may be ______.