Many students like his books,because some of them are about

Some of them like 什么books There are many books on the desk,but ( )of them is about Eng I have many books,some of ____ are on chemistry.A.them B tha I have many books,some of _________ are on chemistry.A.them Many students feel ( ) (stress) and some of them are not sur I like those native animals best because many of them are ou some of his books are very exciting I have many books,some of them are on English.这个句子表达正确吗?我知道这 I bought some books,and all of them are interesting. The books of him are as many as mine.和His books are as many _________ of them are not students.Some of them are teachers what are some of your resolutions?write about them.