– Unfortunately, I won’t have time to visit the World Expo 2010 _____ I’m in Shanghai.– What a great pity!
The government has taken some measures to solve the shortages of electricity, but it may be some time _______ the situation improves.
Li Ping is the only one of the students whom I think _______ fit for the job.
________ five minutes ______ before the last bus left, we arrived at the station.
I am moving to the countryside because the air there is much fresher than _______ in the city.
The farmers once used wood to build a house ______ to store grains all the year round.