Now waste from daily life in the city of Shanghai ______ to be separated into four different groups.

当前位置：初中英语 / 单选题

1. (2020·南京) Now waste from daily life in the city of Shanghai ______ to be separated into four different groups.

A . is requiring B . is required C . was required D . required

微信扫码预览、分享更方便

使用过本题的试卷