第一部分:英语知识运用(共2节,满分30分)第一节:单项填空(共10小题;每小题1分,满分10分)The classroom is so dirty. _________ we clean it?
It’s high time we ________ effective ________to improve your working conditions.
It’s really very dangerous.One more step,________the baby will fall into the well.
Let me have a rest,________?
Open a window,________?
Don’t make so much noise,________?