______ he returns to his native land.
A．It is long before sinceB．It is before long that
C．It won’t be long beforeD．It will be long after
C

試題分析：考查固定句型：It won’t be long before….，要不了多久就會(huì)…，句意：要不了多久他就會(huì)回到祖國。選C。
點(diǎn)評(píng)：It won’t be long before….，要不了多久就會(huì)…和這個(gè)句型相似的是：It is+一段時(shí)間+since…，這兩個(gè)句型的時(shí)態(tài)是不同的，要看清楚。
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