Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute.A．is B．was C．has been , Z8 \6 i* Z8 S" [4 ?3 @8 g0 Y; T D．had been试题及答案-完形填空-云返教育
试题详情
Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute.
A．is
B．was
C．has been , Z8 \6 i* Z8 S" [4 ?3 @8 g0 Y; T
D．had been
试题解答
见解析
B 试题分析： 句意：Sheldon本可以在比赛中打败 Howard的，但是他最后一分钟太粗心了。前面的could have defeated是对过去情况的虚拟，but后面的内容是过去的事实，用一般过去式，所以选B。 考点：考查时态
