_________(56)A.regret B.delay C.hesitation D.choi

There has been a______ lack of communication between the management and the union.A．regret

56._________A. excitedB. intendedC. interestedD.

56._________A. reportB. respectC. representD. rev

56._________A. addedB. leftC. createdD. released

56._________A. strategies B. reasonsC. supportsD.

56._________A. watchedB. producedC. learntD. heard