The 30th Olympic Games in London, England in 2012.
【2015·陕西】Mary really hard on his book and thinks he’ll have finished it by Friday.
【2015·陕西】At college, Barack Obama didn’t know that he the first black president of the United States of America.
【2015·四川】More expressways in Sichuan soon to promote the local economy.
【2015·天津】Jane can’t attend the meeting at 3 o’clock this afternoon because she ______ a class at that time.
【2015·天津】Despite the previous rounds of talks, no agreement______so far by the two sides.