The speaker ______ have criticized the par
问题:
The speaker ______ have criticized the paraprofessionals, knowing full well that they were seated in the audience.
A.should not to
B.must not
C.ought not to
D.may not
The speaker ______ have criticized the paraprofessionals, knowing full well that they were seated in the audience.
A.should not to
B.must not
C.ought not to
D.may not