The room is still in a mess;it ___ thoroughly cleaned.
问题描述：
The room is still in a mess;it ___ thoroughly cleaned.
A.can't have been
B .mustn't havebeen
C .wouldn't have been
D.shouldn't havebeen
请问选哪个?选和不选的原因?顺便把句子翻译成中文.
答
同学,很高兴回答你的问题正确答案：选【A】即：The room is still in a mess;it 【can't have been 】 thoroughly cleaned.翻译：这个房间仍然很凌乱,它不可能被彻底打扫了.解析：当表示否定猜测时用can't,表示不可...