The book was written in 1946, _______ the education system has witnessed great changes.

I was born in New Orleans, Louisiana, a city _______ name will create a picture of beautiful trees and green grass in our mind.

Thousands of people lined up to lay flowers in front of a 28-story high-rise in Shanghai, _______a terrible fire killed at least 58 people.

I don’t know the reason _______ you were absent from the meeting, and I am not sure that someone will tell me the reason _______ you haven’t told me.

Last Sunday I went to visit the History Museum where I saw a pot _________ about 1,000 years before.

Last week,only two people came to look at the house, _______ wanted to buy it.

______is known to us all, only the theory ______ on practice can be practical.

His younger sister may already be in high school now, in ___ case this picture book is too childish for her.

Colonel Harland Sanders was the founder of KFC, for _____ life was full of failures before he was successful.

Nowadays, many women, ________some are not overweight at all, are always going on diets or taking weight-loss pills, ________ are often dangerous.