John got the first prize in the speech competition,and he was so excited _____us ___theatre.
问题描述：
John got the first prize in the speech competition,and he was so excited _____us ___theatre.
A.to treat; to B.that he treats; to
C.as to treat; for D.as to treat; to
为什么?
答
so...as to do sth 如此...以致...so excited as to treat...
treat sb to sth 请客