_________(58)A.expensive B.complicatedC.rare D.tr

According to Savage, the manager of 3M, videoconferencing is ______ .A．expensive in instal

58._________A. suggestedB. proposedC. signalledD.

58._________A. cutB. dropC. brokeD. turned

58._________A. likeB. byC. asD. on

58._________A. effectedB. beatenC. slappedD. affe

58._________A. violenceB. attitudeC. friendshipD.