问题
选择题
The first time I saw her, Mary was standing still in the wind, her long hair _____in the air.
A．is flying
B．flying
C．to fly
D．flew
答案
答案：B
考查独立主格结构。her long hair与fly为主谓关系故用现在分词作补语。句意：第一次我见到玛丽的时候她正站在风中一动不动，长发随风飘舞。