_____ quickly and soon his resignation（辞职）became the talk of the town.

It’s quite normal to___ ten percent of the cost of a building for a period of six months or so, in case faults are found in it.

Where ______ you _____ — I went to see the football match.

A computer can only do you have instructed it to do.

Friends are angels who lift us to our feet ____our wings have trouble remembering how to fly.[ ]