George: May I speak to Mr. Ben, please ? Secretary: I’m afraid he ....... a meeting right now. Could you call back…

George's favorite book is “crime and punishment” ............... one is yours?

Take a break when you .................. feeling tired from all the reading.

We .................. be brave in the face of danger.

Choose the sentence with the RIGHT PUNCTUATION.

Mr. Brown ......... at the university for ten years when he decided to change jobs.