With an appropriate coordinator

With an appropriate coordinator or subordinator:
(1)You can either come with me ____stay at home.
(2) ____we have already observed, all business letters are in a sense sales letters.
【正确答案】：or;as
【题目解析】：【考点点击】本题考查并列连接词和从属连接词。【要点透析】 either.or是固定搭配,意为“或者……或者…”;As引导非限制性定语从句,指代主句,意为“正如,正像”。