I looked upset but __________ I was quite exited.

I looked upset but __________ I was quite exited.
A、actually
B、really
C、genuinely
D、truthfully
【正确答案】：A
【题目解析】：A项：事实上；B项：真正地；C项：真正地、真诚地；D项：诚实地；题意：我看上去很不安，但事实上，我超兴奋。