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reading a bookShes reading a book.taking picturesHes taking pictures.watching TVShes watching TV.playing with toy trainHes playing toy train.listening to musicShes listening to music.听音乐talking to friendHes talking to friend.和朋友说话child children孩子孩子们childrens daywhat are you doing?你在干什么？What are you doing?Im.reading a booktaking pictureswatching tvplaying with toy trainlistening to musictalking to friend.孩子们，你们在干什么？孩子们，你们在干什么？中国中国