No one knows ___ the professor will come to our school tomorrow to give us a talk or not. A. when B....
2022-10-15 05:40:39 149次 牛津译林版九年级英语语法专题练习-宾语从句 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
No one knows ___ the professor will come to our school tomorrow to give us a talk or not.
A. when B. whether C. where D. if
本题链接：
