Not until the stadium of Bird’s nest was completed in the end _______ back to their normal position.

--- _______ that he picked up French?
--- It was in 2010 _______ he traveled in France.

-- In the countryside you can enjoy fresh air, blue sky and quiet surroundings.
--- _______ more and more retired people are escaping from the crowded city.

________ the problem of land erosion(侵蚀) getting more serious, the government is searching for a way to deal with it.

－Can you tell me _______ to travel to Dalian?
－About two hours by plane.

Successful people are always intelligent. They can discover______ others easily ignore.

Not until I came home last night　________ to bed.

--- It’s the fourth time that heavy smog(雾霾) has hit the city this month.
--- It’s high time we _______ measures to fight air pollution.

It is not who is right but what is right               is of importance.

Nongfu Spring, one of China’s biggest bottled water companies, was reported ________ to meet national standards, and its chairman held a news conference in Beijing on May 7.