________ there are living creatures in the outer space as those on Earth hasn't been proved until now.
Karen was always thinking we were talking about his poor past. Every time we were chatting together, he would be all _____.
---- _____? ---- You were saying you sold the house and left your hometown.
The stadium was named ____ the club’s first chairman , who had high fame .
We must keep our room clean. Dirt and disease go _____, you know.
I thought you ____ like something to read, so I have brought you some books.