试题详情
单项选择 较难0.4 引用2 组卷282
No one knows ________or not the professor will come to our school tomorrow to give us a talk.
A.whenB.whetherC.whereD.if
19-20九年级上·全国·课时练习
知识点:if/whether引导宾语从句 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!