问题
选择题
The girl in the photo was smiling sweetly, ________.
A．her long hair flowed in the breeze
B．her long hair was flowing in the breeze
C．her long hair flow in the breeze
D．her long hair flowing in the breeze
答案
答案：D
D 考查独立主格结构。根据逗号后无连词可知其后不是并列句，排除选项B；her long hair与flow之间构成主动关系，排除A项；此处是独立主格结构作状语，其构成是“名词/代词＋doing”，故D项正确。