My history teacher Jones is a teacher with rich __________ who has experienced different ways of life across the world. That’s to say, his students can get benefit from his ___________ from his world traveling.

I’m terribly sorry that I’ve kept you waiting for so long.– ____________.

The old radio requires ___________, so you’d better have it __________soon.

____Grian_____Tara are studying Chinese history and culture now. They find them rich and amazing.

Do you like blue-_______ . It’s my favorite color.