问题补充:
Our physics teacher told us light faster than sound last term.
A. travels
B. travel
C. travelled
D. travelling
答案:
(答案→)A. travels
B. travel
C. travelled
D. travelling
解析:句意:上学期我们的物理老师告诉我们光比声音传播得快。结合语境可知宾语从句中描述的是客观性动作,故用一般现在时态。Light是抽象名词,不可数,故谓语动词用单数。选A。