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David and his families took a trip to the PRC for the National Day holiday. They went there by plane. On the first day, they went to the Great Wall. David took lots of photos there. On the second day, they visited Beihai Park and went boating there. At noon, they ate Beijing Roast Duck （烤鸭） in a restaurant. On the third day, David bought some gifts for his firiends and then they went back home by train. It was a great holiday!