题目内容：

1.Do the umbrellas belong to those _____________(邮递员)?

2.I introduced Lucy to Mike and now they’re _____________(已婚的).

3.Is the wooden house hidden _____________trees? (在……中)

4.The charity walk becomes even __________ because you have to finish walking a 100-kilometre trail within 40 hours.（艰难的）

5.They discussed for a long time, at last they reached an ____________. (协议)

6._________ (luck), he didn’t catch the last bus back home. He had to walk. 

7.Tough the cartoon _____________ (it) was not interesting, it still attracted many kids.

8.None of my classmates can swim _____________ (far) than I can.

9.Every time you answer a question __________ (correct), you will lose a point.

10. Computers were one of the greatest __________ (invent) in the last century.