It is the ability to do the job ________ matters not where you come from or what you are.

Do you know sound travels very fast　一Yes. But light travels _________ sound.

I’m not going swimming this afternoon.— ______. I have to help my mother do some cleaning.

The robber was caught by two men ______police uniform _________.

“He hasn’t got any hobbies——_______you call playing games on computer a hobby.” MrLin said