---- It’s difficult for the village children to cross the river for school.---- I think a bridge ______ over the river.
Are you ready? We’ll go out for a picnic ____ three o’clock.
—I’m too nervous to give a talk before so many people? —_________, Maria. I think you can make it.
—I was asked to attend the meeting before eight.—Oh, you________. I'm sorry for not telling you that we have changed the plan.
What ___ you____ at ten yesterday evening?
—____ the workers are very tired, _____they keep on working. — They are great. We must learn from them.