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—It’s a long time _______ I drunk so much. 

—Yes, and what a pity it is since it will be a long time ______ we see each other again.

A before; since                B. when; when

C. since; before                D. when; then

C


解析:

本句考查到了两个结构,也是时间状语从句,第一个空:由since引导的时间状语从句,如从句中的谓语动词是持续性动词,动作从结束时算起,本句表示的意思是“我很久没有见你了”。第二个空由before引导的时间状语从句意为在…之前很久…,也就是“很久之后”,本句意为“很久之后我们才能再见面”

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