I am reading a book ,It is about space 改为定语从句

I am reading a book ,It is about space 改为定语从句 I'm reading a book.It's about space.（改为定语从句） I am reading a book which/that it is about a robbery. 1 I am reading a book.The book is about a famous musician. 初三英语（定语从句）1.把下面的简单句改为带有定语从句的复合句.①That is a story book.I am l I'm reading a book .The book is about Chair-man Mao.（改为复合句） This is a book.I bought it.改为宾语从句 I am reading a book that is about a famous musician I am reading the book (which is about Monkey King.) i am reading a book.改为一般疑问句 i am reading a book.改为肯定句 I am reading a book.(改为否定句）