Through years of hard work, MrsSmith, who ____ as a secretary for five years, is general manager of the company now

A friend of my ____ and I are going to visit_______ next week.

It was in the lab_____ was taken charge of by Mr.Harris_____ they did the experiment.[ ]

Time ____ never comes again. So we’d bettermake full use of our time.

They will lose the game ______they try their best.