The young man has made so much noise that he ________ not have been allowed to attend the concert．

The young man has made so much noise that he ________ not have been allowed to attend the concert．

A.could

B.must

C.would

D.should

答案及解析： D

解析：

should not have done表示“过去不应该做而做了某事”，含有“后悔，责备，劝告，批评”之意。