题目
Jack kept in touch with his friends ((by e-mail)(划线))during his stay in America.(对划线部分提问)
_____ _____Jack keep in touch with his friends during his stay in America?
_____ _____Jack keep in touch with his friends during his stay in America?
提问时间：2020-07-26
答案
How did Jack keep in touch with his friends during his stay in America?
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