问题
选择题
When I was walking in the street, I saw a plane___________ over my head.
A.flies
B.flying
C.flew
D.fly
答案
答案:B
考查感官动词see的用法。see sb. do sth.“看见某人做了某事”;see sb. doing sth.“看见某人正在做某事”;句意“当我在街上走时,我看见一架飞机在上空飞行。”故选B。