Thewastewaterhasbeenmadecleanbeforeitgoesintotheriver ...
- 习题库
- 关注:7.01K次
问题详情:
The waste water has been made clean before it goes into the river the new rule was made.
A. since then B. ever since C. after D. before
【回答】
B
知识点:连词
题型:选择题
标签:
- 文章版权属于文章作者所有,转载请注明 https://zhongwengu.com/zh-my/exercises/3edy9j.html