自从来到中国后玛丽一直在学汉语.英语翻译 Mary____ ____ ____Chinese____she came to China.
问题描述：
自从来到中国后玛丽一直在学汉语.英语翻译 Mary____ ____ ____Chinese____she came to China.
答
Mary_has___ _been___ _learning___Chinese__since__she came to China.
答
Mary__has__ __been__ _learning___Chinese_since___she came to China.
has been doing 表示从过去某时开始一直持续到现在的动作，并且还将持续下去。
答
Since I came to China Mary has been learning chinese
答
Mary（has been learning)Chinese(since)she came to China.
答
自从来到中国后玛丽一直在学汉语.
Mary_has___ _been___ _learning/studying___Chinese__since__she came to China.