—Don’t________ too long, or you’ll be tired the next day.—OK, mum. I’ll be ready.
They arrived at the finishing line________the same time.We didn’t know who the winner was.
The boy started to play the guitar________the age of seven.
—I had a bad cold.—________.
—Will you have a picnic tomorrow?—Yes.But if it________,we’ll visit the museum instead.A.will rainB.rainsC.doesn’t rain
The river will be dirtier and dirtier________we do nothing to protect them.