-I'll take part in the boys' 200-meter race this afternoon!-_______A. Never mind. B. Of course not. C. Good luck to you!
Spacecraft can travel ______the speed of light .
In 2100, people will by robots.
I wonder ___________ from Beijing next week.
Last night someone_______ the shop and took away lots of watches.
Though he is charged_______ the murder, he isn't involved_______ the case.