问题
选择题
Armstrong became interested in _______ ever since he took his first _______ at the age of six.
A．fly; flying
B．flight; fly
C．flight; flying
D．flying; flight
答案
答案：D
题目分析：句意：阿姆斯特朗自从六岁时开始第一次飞行就对飞行产生了兴趣。Fly是动词“飞，飞行”，become interested in“对 ……感兴趣”，后接名词、代词、动词ing；flight是其名词形式，在句中作主语或宾语。故选D。