I met five          (德国人) in the street last week.
I lost my history book on          (星期一).
After a week, the poor boy          (痊愈) from the bad cold at last.
The snow is very ___________(疏松的)and there is a lot of air in it.
We can _______(交流)with people in most parts of the world by telephone.
I feel a little dull in the room ,so I want to go ______ (户外) to breath some fresh air.
Air pollution is one of the problems that we can’t afford to _______(忽视).
He has a very large __________(词汇量).
We must pay attention to what young people are ______ (实际上) doing.
Many support the former idea, but I am for the _________(后者).