I know he has been married.A. As long asB. As soon asC. As far asD. As well as

问题补充：

I know, he has been married.

A. As long as

B. As soon as

C. As far as

D. As well as

答案：

A. As long as

B. As soon as

(答案→)C. As far as

D. As well as

解析：as far as I know意为“据我所知”；as long as意为“只要”；as soon as意为“一……就……；as well as意为“也；又”。