They _____ England and they willbe back next week.

It was not until dark _____ he found _____ he thought was the correct way to solve the problem. [ ]

The president of the university has been ___ for two years

I don’t know _______to do next? –It’s easy .Press the red button in 2 minutes.

Tom, I regret ________ you that you didn’t pass your final examination.— Oh, my God! I regret ________ too much time which should be used to study.[ ]