There are 51 students in Class Three,(all of whom)failed in
There are 51 students in Class Three,(all of whom)failed in the test .为什么不能用all of t... There are 51 students in Class Three,(all of whom)failed in the test .为什么不能用all of them或 none of them呢 解释说因为前后没有并列关系 难道是要并列的情况才能使用这两个嘛
,(all of whom)failed in the test 是主句.There are 51 students in Class Three中主语51 students 的非限定性定语从句,而不是并列关系.all of them中的them不是关系代词,所以错误;none of them中不的them是关系代词,所以错误.