You all those clothes! We have a washing machine to do that sort of thing.
A. wouldn’t have washed
B. mustn’t have washed
C. needn’t have washed
D. can not have washed
网友回答
A. wouldn’t have washed
B. mustn’t have washed
(答案→)C. needn’t have washed
D. can not have washed
解析：考查情态动词。needn’t have done本没有必要做。句意：你本没有必要洗那么多衣服！我们有洗衣机来做那种事情。