It’s very dangerous __________ football in the street.

Dad, I ______ the theatre for a while, but I left my ticket at home.— Don’t worry, my boy, I will take it to you.

It is said that our body _______

Which club would you like to join, art club or basketball?— _______ is OK. I’m good at them.

He was so angry at all _____ I was doing _______ he walked out.