We don't doubt _____ he can do a good a good a good job about it.空格里是whether还是that?两种说法都有,麻烦给出详细解释.

分类: 作业答案 • 2021-12-19 16:21:42

问题描述：

We don't doubt _____ he can do a good a good a good job about it.
空格里是whether还是that?两种说法都有,麻烦给出详细解释.

答

填 that.
如果用if,应该是 we doubt if he can.