It is a long time ________ they separated, but it won’t be long ________ they meet again.
A．since, beforeB．a(chǎn)fter, whenC．since, whenD．a(chǎn)fter, before
A

試題分析：句意：自從他們分開已經(jīng)很長時(shí)間了，但是沒過多久他們又相見了。Since自從，前面的主句也可用現(xiàn)在完成時(shí)；it won’t be long before…沒過多久就…….這是固定句型。
點(diǎn)評(píng)：本題難度適中。固定句型是高考�？嫉闹R(shí)點(diǎn)，需要考生平時(shí)多記多背。并且注意區(qū)分類似的句型的用法。
即學(xué)即練：It won't be long ______ the Chinese people will become well off.
A. before   B. when        C. since    D. after
解析：A。句意：中國人民不用多久就會(huì)變得富裕起來.
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