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After the war, a new school building was put up  ________ there had once been a theatre.

The lawyer seldom wears anything other than a suit ________ the season.　　　　　　　　　　　　　　　　　　　

The village has developed a lot ________ we learned farming two years ago.

—Since you like the car so much，why not buy it?
—________，I can't afford it.

(2013·安徽，21)From space, the earth looks blue.This is ________about seventy－one percent of its surface is covered by water.

He tried his best to solve the problem, 　　　　difficult it was.  

I won’t give in ________ great difficulties I come across in my life.

Make marks _______ you have questions. 

We climbed higher _____ we might see the scenes better.

The explorers failed to find the cave because it was not located      they had expected it to be.