They tried to find out ______ the new train ________. A. how far/_英语解答

They tried to find out ______ the new train ________. A. how far/ had gone B. how long/ has goneC. how far/ went D. how far had/ run告诉我为什么

人气：411 ℃　时间：2019-08-20 18:18:52

解答

A. 主句用过去时,宾语从句里发生在主句动作之前,用过去完成时