2022嫩江统招专升本英语每日一题87

7. The room is in a terrible mess; it ________ cleaned.

A.can’t have been B.shouldn’t have been

C.mustn’t have been D.wouldn’t have been

7.【究竟】A。解析：考查情态介词完成式表即使如此猜测的名词。句意：这个房子乱成一团令人吃惊，它一定没被打扫过。can’t have done 回应对即使如此发生的情形毫无疑问的论点的猜测。句意：这个房子乱成一团令人吃惊，它一定没被打扫过。故选A。