问题
选择题
—How long will it be ________ the 30th Olympic Games is held in London?
—It won’t be two years, I think.
A.when
B.that
C.before
D.since
答案
答案:C
考查句型It will be long before... 要过很久才……。句意:要过多久伦敦才举行第三十届奥运会? 我想不到两年。