He （ ） yesterday morning, and would stay for three days.

Tom’s bedroom was in a （ ）, for books and papers were here and there.

By the time you arrive in London, we （ ） in Europe for two weeks.

_____ finished his work, he had to stay at home on the weekend.

You _____ all those calculations! We have a computer to do this sort of things.

We consider_____the instrument be adjusted each time it is use

It is （ ） impossible to work with this noise around.

Mr. Green said his clients _____ our samples by the end of last month.

If the wounded soldier had been given first_____, he would not have died.

The computer doesn’t work well， so something （ ） wrong.

The defense computers calculate way to （ ） the enemy missiles.

The authority urged the rebellious party to _____ their arms and come back to the negotiating table.