I thinknecessary to do some running in the morning.

Swimming is good _____ our health, but at the same time we mustn’t forget the danger. [ ]

His explanation was so clear that everyone could understand it with ________.

He has worked in the factory _____five years ago.[ ]

Can you tell us what to do next, Miss White?— Please turn to Page _____ and look at the _____ picture.