【单选题】听力原文:W: How long have you known Susan? M: I've known her about three years. I met her in the library where we used to read, but now I can only see her on the campus occasionally. Where did Susan often...
【简答题】When you are in England you must be very careful in the streets __1._____ the traffic drives on the left. Before you cross a street you must look to the right first __2._____ then the left. In the mor...