Where is Linda? Do you know?—Linda _______ South Hill with her parents , and they will be back this afternoon.
This map is drawn to the _______ of one inch for 1000 miles, so you can find out how far it is from Beijing to Shanghai.
_____ of the water _____ polluted. We must try to protect our environment.
Tomorrow is Sunday. Are you going swimming?-I’m not sure. It ______ the weather.
_____, nobody believed what he said.[ ]