________hisarrival,webegantodi

发布时间：2020-07-27 23:01:02

________ his arrival, we began to discuss the matter at once.A.OnB.InC.AtD.As soon As

网友回答

A解析on one's arrival“某人一到达”。故正确
以上问题属网友观点，不代表本站立场，仅供参考！