单项选择题

Our physics teacher explained to us that light______faster than sound.

A．is traveling
B．traveled
C．travels
D．has traveled
<上一题 目录 下一题>
热门 试题

单项选择题
The author’ s purpose in writing this passage is to______.
A．warn people not to celebrate Halloween any more
B．criticize the Halloween celebration activities
C．tell people to be careful in deciding whether to celebrate Halloween
D．promote the tradition of Halloween and its celebrations
单项选择题
What does the story try to tell us
A．Never give up too easily.
B．No pains, no gains.
C．Early bird catches the worm.
D．It’ s never too old to learn.
相关试题