More and more foreigners have come to China． A foreign teacher named Jack stayed in China and wrote something about his experiences． Now let's share his experiences in China：

    During my five years in China， I have had the chance to travel all over China and see some interesting things． I not only have seen many places of interest， such as the Great Wall in Beijing， the home of Confucius in Qufu， Shandong Province， and the city of Xi'an， but also have seen beautiful gardens in Suzhou， Huangguoshu Waterfall in Guizhou Province， and wonderful beaches in Dalian and Qingdao． Huangguoshu Waterfall is the most beautiful place I've ever seen． I've also met many friendly people around China． They included students in middle schools I visited in Inner Mongolia， Shanxi Province， and Guizhou． All of my experiences were wonderful．

（1）What is Jack？　　

（2）How long has Jack been in China？　　

（3）What has Jack had the chance to do？　　

（4）Where has Jack seen wonderful beaches？　　

（5）Has Jack met any students in middle schools？