I am reading a book which/that it is about a robbery.用which还是that?为什么?

英语翻译I am reading a book loudly. I am reading a book改为疑问句 I am reading a book .对reading提问 i am reading a book.改为一般疑问句 i am reading a book.改为一般疑问句 i am reading a book.改为肯定句 book am a reading i连词成句 i am reading a book.改为特殊疑问句句 No,I am reading a comic book.问句 I am reading an (i ) book I am reading a book at home对划线部分提问 划线部分是reading a book I am reading a book that is about a famous musician 还是应该说成The book I am reading is about a famou a musician i reading a book.的i后面为什么要加am? I am reading a book ( ) animals .A.of B.in C.about I am reading a book.(改为否定句）是初中的题啊! I am reading a book ,It is about space 改为定语从句怎么改？ 1.father,and,book,cooking,a,is,my,am,I,reading(.)(连词成句) I am reading a book ( ) the history of the worldA in B onC forD to