Why have you kept me____(wait)here for so long a time

Why have you kept me____(wait)here for so long a time Why have you kept me ____ here for so long a time?(wait) She She kept me____(wait)for a long time yesterday. I'm sorry.I have kept you ()for me so long.A:wait B:waiting -Sorry to have kept you waiting for so long a time. 英语改错 “I'm sorry to have kept you to wait for so long” Have you been here for a long time? –Have you worked here for a long time? 用所给词的正确形式填空:1.I’m sorry I kept you( )(wait)for a long time . why did you keep your brother___(wait)for a long time yester I’m awfully sorry to have kept you waiting for a long time. Sorry to have kept you waiting for such a long time.