Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate（使发生联系）red with a strong feeling like anger. Red is used for signs of danger, such as STOP signs and fire engines. Orange is the bright, warm color of leaves in autumn. People say orange is a lively color. They associate orange with happiness. Yellow is the color of sunlight. People say it is a cheerful color. They associate yellow with happiness, too. Green is the cool color of grass in spring. People say it is a refreshing color. In general, people talk about two groups of colors: warm colors and cool colors. The warm colors are red, orange and yellow. Where there are warm colors and a lot of light, people usually want to be active. Those who like to be with others like red. The cool colors are black and blue. Where there are these colors, people are usually worried. Some scientists say that time seems to go by more slowly in a room with warm colors. They suggest that a warm color is a good way for a living room or a restaurant. People who are having a rest or are eating do not want time to pass quickly. Cool colors are better for some offices if the people working there want time to pass quickly.

A．Red, orange and blue

B．Yellow, black and red

C．Red, orange and yellow

You can hardly see anything in the dark room, ­­­_____?

A．can’t            B．can you           C．can’t we         D．can we

— What about having some drink first?

-- _____

A.Well,will you B.OK,shall we? C.Yes, don't we? D.Sure,why not?

[　　]

－Her relatives are all here and his ________ come yet.

－________ seems to have been no need for us to wait for them.

[　　]