完成句子
根据句意及括号内的汉语提示，完成句子。（每空一词）
小题1:Low-carbon is a popular word nowadays. We should make a great contribution to__________(保护)the environment.
小题2:There are 56_______(民族)in China. We are like a big family.
小题3:There will be a ________(强) Wind in the northeast of china.
小题4:GPS is one of the greatest__________(发明) in the world.
小题5:Bolt is a magic__________(奔跑着) in the world I think.
小题6:I’m Sorry to tell you that the situation has become _______(坏) than before.
