You ___ drink wine before driving, or the police willtake your license away.

Please remind me ____ he said he was going. I may be in time to see him off.

Marie Curie also ________ the use of X-ray machines, ________ now widely used in hospitals.

He is a _______visitor to that country. I mean, he often goes there.

A: Have you got any books on computers I want to borrow _______.B: Yes, Here you are, but you must return _____ by Friday.