The 30th Olympic Games will be held in London _________ July 27 to August 12th , 2012 .
Jackie is only three years old __________ he can draw very well.
Gao Yan is__________ Zhao Fen and Li Min.
__________ chocolate isn’t good for you.
—How many __________ are there in your class? —Twenty-two.
My mother is __________ English teacher in a middle school.