题目内容
—How long will it be ________ the 30th Olympic Games is held in London?
—It won't be two years, I think.
A.before
B.that
C.when
D.since
A解析:句意:——要过多长时间第三十届奥运会将在伦敦举行?——我想要不了两年。根据句意应用before,表示“到……之前”。
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