1．(2011年济南一中阶段测试)The teacher told us that light ________faster than sound.
A．traveled B．had traveled
C．is traveling D．travels
解析：句意：老师告诉我们：光比声音速度快。从句中陈述的是客观真理，所以用一般现在时。
答案：D
2．(2011年山东东营胜利一中模拟)—What were you doing when Lucy ________in yesterday?
—I had just finished my homework and ________to take a shower.
A．dropping；start B．had dropped；started
C．dropped；have started D．dropped；was starting
解析：句意：—昨天Lucy来访的时候你在干什么？—我(那时)刚写完作业正要开始洗澡。第一空后面有yesterday所以用一般过去时；第二空强调那时正要做某事。
答案：D
