I am sorry ________(keep) you _____(wait) for a long time.

I am sorry ________(keep) you _____(wait) for a long time. I am sorry to keep you _______(wait)for me for a long time. .I'm sorry to keep you ___ for a long time.A.to wait B.waiti I’m sorry to keep you _(wait) for a long time 适当形式 i'm sorry to keep you ----（wait） for a long time I am sorry to keep you waiting for me for a long time I' m sorry to keep you waitting for a long time.这句话为什么用wait的 I'm sorry to keep you_______(wait) for em for a long time. I am sorry I _____(keep)you waiting so long. I'm sorry I ___(keep) you waiting for such a long time I'm sorry to keep you （）for a long time. sorry to keep you waiting for such a long time .I must say s