- Is your father in? - No, he ______ for three hours.
It’s very dangerous _______ children to cross the busy street.
--- Which of the two T-shirts do you prefer? ---______is OK. I don’t like their styles.
While I was walking along the lake, I saw some fish _____out of the water.
--- Have you got ______ready for the sports meeting? --- Not yet. We still have _____to do.
The teachers often tell their pupils ____ across the road when the traffic light is red.