sorry to keep you waiting for such a long time .I must say s

sorry to keep you waiting for such a long time .I must say s Sorry to keep you waiting for such long time. I'm sorry I ___(keep) you waiting for such a long time I am sorry to keep you waiting for me for a long time I'm sorry I-------------(keep)you waiting for such a long ti Sorry to have kept you waiting for such a long time. I’m awfully sorry to have kept you waiting for a long time. I am sorry to have kept you waiting for a long time. i'm sorry to have kept you waiting for a long time .I'm sorry to keep you ___ for a long time.A.to wait B.waiti I am sorry to keep you _______(wait)for me for a long time. I'm sorry to keep you （）for a long time.