问题补充：
---- he has known the good news.
---- is no wonder he is so excited.
A. It is likely that; It
B. It is probably that; There
C. He is likely that; There
D. He is possible that ; It
答案：
(答案→)A. It is likely that; It
B. It is probably that; There
C. He is likely that; There
D. He is possible that ; It
解析：第一空考查“可能” likely的主语可以是人也可以是”it”而possible \probably的主语是”it”，第二空考查句型“不足为奇”it is no wonder that…。句意：有可能他知道了这个好消息。难怪他那么高兴。
