these have not had any effect这里为什么用these呢?能不能用this.these指的是Jasper has put up“no p

分类: 作业答案 • 2021-12-28 15:31:13

问题描述：

these have not had any effect这里为什么用these呢?能不能用this.these指的是Jasper has put up“no p
these指的是Jasper has put up“no parking”signsoutside his gate 这件事

答

these指的是“signs”,不是这件事.当然,也可以换成this has,只是意思变成了“这件事没效果”