It won’t be long _____ the island ________ to our motherland.
A．when, returnsB．before, will returnC．since, returnsD．before, returns
D
　It won’t be …before…“用不了（多長時間）就會…”，其中before引導的是時間狀語從句，所以應(yīng)用現(xiàn)在時態(tài)。
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