Inmyopinion,lifeinthetwenty-first

发布时间：2020-07-11 23:48:06

In my opinion, life in the twenty-first century is much easier than ________.












A.that used to be











B.it is used to










C.it was used to










D.it used to be

网友回答

D解析表示"过去常常……"用used to do...，并且本题be不能省略。
以上问题属网友观点，不代表本站立场，仅供参考！