---I thought Tony should have won the contest.---What a shame! He just too nervous while

---I thought Tony should have won the contest.
---What a shame! He just too nervous while playing.
A. had been
B. has been
C. was
D. would have been

A. had beenB. has been(答案→)C. wasD. would have been解析：考查一般过去时。A过去完成时；B现在完成时；C一般过去时；D过去将来完成时。根据语境“should have won the contest（本应该赢得比赛）”虚拟语气与过去事实相反，可知比赛发生在过去，所以描述比赛很紧张之事发生在过去，故选C。句意：——我认为托尼本应该赢得比赛。——真遗憾！他比赛时只是太紧张了。

我好好复习下