red is a symbol of warmth, it can sometimes make people feel uneasy or even frightened

_ is known to us all is that the theme ofShanghai World Expo is “Better City, Better Life”.

There is no light on, they ____ be at home. [ ]

So______ that most parents are too worried to lettheir kids travel alone at the beginning of the new term.

The children___ play football on the road.