题目内容
用适当的介词填空
1)Cases of this nature are ________ the decrease.
2)The number of the students has decreased ________ 2000.
3)The number of the students has decreased ________ 10%.
答案:
解析:
解析:
1)on 2)to 3)by |
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目