______ such heavy pollution already, it may now be too late to clean up the river.

admin2017-07-18  41

问题 ______ such heavy pollution already, it may now be too late to clean up the river.

选项 A、Having suffered
B、Suffering
C、To suffer
D、Suffered

答案A

解析
转载请注明原文地址:https://kaotiyun.com/show/ZFiC777K
本试题收录于: 英语题库成考专升本分类
0

随机试题
最新回复(0)