单项选择题

We see lightning before we hear the thunder because sound travels more slowly than light is.()

A. before we
B. because
C. more slowly
D. light is

<上一题 目录 下一题>
热门 试题

单项选择题
He is opposed to the project for the reason why it is not feasible for the time being.()

A. to
B. for the reason why
C. feasible
D. for the time being
单项选择题
Having finished his term paper before the deadline, it was delivered to the professor before the class.()

A. finished
B. before the deadline
C. it was delivered
D. before
相关试题