______healthy，you should take more exercise and eat more healthily .

You never feel worried before an exam, how can you do that —Well, I’ve been working hard all the time. Surely I ______ any exam.

Where have you been recently? — I _______ in Hangzhou on business for a week last month

­­­So you missed the meeting.—­­­____. I got there ten minutes before itfinished.

Before the economic crisis came John had sensedthe firm was to be ruined and he _____ just in time.