228. Oh, the classroom is so dirty. It needs before we begin our class.A. cleanedB. being

发布时间：2020-08-16 07:04:30


228. Oh, the classroom is so dirty. It needs      before we begin our class.
A. cleaned
B. being cleaned
C. to clean
D. Cleaning

网友回答

A. cleaned
B. being cleaned
C. to clean
(答案→)D. Cleaning
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！