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选择哪个?() ten years since his father left his home town.

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选择哪个?() ten years since his father left his home town.
A.It was B.There was c.There is D.It is
您好! 选择A It is(has been) 后是表示一段时间的短语,since后通常用一般过去式,since后从句如用短暂性动词,表示动作已开始了多长时间了;since后从句如用延续性动词,则表示动作已结束了多长时间了.如果主句是一般过去时,从句则用过去完成时.例如: It is (has been) 5 years since his father died. 他父亲死了五年了. It is (has been) 5 years since his father worked here. 他父亲不在这里工作已五年了. 望您采纳,谢谢您的支持!