hould have been warned of the danger before she carried out her traveling plan.— ______, but she wouldn’t listen to me.

How was the chess competition last week. Jack-Bad luck! David beat(击败）me in the competition and _________first place.

If we ___________everything ready by now, we should be having a terrible time tomorrow.[ ]

To spend the summer vacation, we may go to the mountains, or _____go to the seaside [ ]

We live in an age________many things are done on computer.