Ireallyenjoyedyourlecture,________

发布时间：2020-07-26 03:41:39

I really enjoyed your lecture, ________ there were some parts I didn’t quite understand．A.becauseB.whetherC.sinceD.although

网友回答

D
以上问题属网友观点，不代表本站立场，仅供参考！