This article was written ______ for China Daily.

er becomes increasingly scarce in decades______, water shortage will become a hot issue all over the world.

Inthefamilyphoto,mysisteris________theleft.

walking along the street and all of a sudden, a car cut in andknocked me down— You cannever be ______ in the street

The teachers often tell their pupils ____ across the road when the traffic light is red.