I didn’t know ________ they could pass the exam or not．A．why B．when C．that D．whether

分类: 作业答案 • 2021-12-20 02:01:01

问题描述：

I didn’t know ________ they could pass the exam or not．
A．why B．when C．that D．whether

答

D,我不知道他们是否能通过考试,因为Weather.or not 是一个固定搭配,是否