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I haven't written home Christmas. [ ] A.ever sinceB.ever since then C.ever befor

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I haven't written home Christmas. [ ] A.ever sinceB.ever since then C.ever befor

I haven't written home ________ Christmas.

[]

A.ever sinceB.ever since thenC.ever beforeD.since then

试题答案

答案:A

解析:

ever since表示“从……以后”与完成时连用。