there has been growing___the security of the country since the 9.11 terrorist attack.

分类: 作业答案 • 2021-12-27 09:59:43

问题描述：

there has been growing___the security of the country since the 9.11 terrorist attack.
横线用concern over可以么?

答

嗯可以的
我在复习雅思作文的时候
在讲到关于某个社会问题的时候
文章开头经常看到类似的句型