He has written many books,two of them are widely read

问题描述:

He has written many books,two of them are widely read
答案说two of them 有错 有人说are 改成were 我很不认同 前面完成时 后面当然可以是现在时 除非前面是一般过去时

two of which...
要用two of them,改成并列的两个句子..
He has written many books,and two of them are widely read.