He started to learn English in 1990 and in the years ________ he kept on using it in his work.
The of Green Olympics, High-tech Olympics and People’s Olympics will allow Beijing to become the focal point for tourists from across the globe.
-How could I thank you enough? -Don’t mention it. Any other man __________ that.
—There were not many people in the concert yesterday. —Pop music isn’t ________.
— Mike got “F” in his history test. 一 ? He has been working so hard on it.
— _________ was it _________ they discovered the entrance to the underground palace?— Totally by chance.