this is a book on ________(electronic)

this is a book on ________(electronic) This is a book excuse me ,whose book is this --it __ be john's .it has his name on it.A.must B.need C.can't D.can This book __ to Mary.A belong B belongs C is belonged D is belonging THIS BOOK IS THE __ A.teacher B.teachers C.teacher’s Is this a book? Yes,this is. This is s book.(a book提问) This is a book答语 There __ a book and two pens on the desk.答案是is.为什么 This is () book.() is on the desk.A.my/his B.his/my C.mine/his This book is boring.(同义句替换） This book __ ____. 填的是代词 1.What's ___(he) name?2.__(she)English book is on the deskl.3.I like__(this) photos4.The these__(watch) are here.5.__(those) is her pen.6.----What's this?----It's __(a) orange.7.What color___(be) the clocks? 13.2 This book is not interesting . In my opinion , it is really not worth __.This book is not interesting . In my opinion , it is really not worth __.A.reading B.to read C.to b This is my own bag.=This is a __ __ __ __ This book is different_____that one.A from B in C at D on This book is on the desk不加is This is your book.My is on the desk. This is Sandy's book.please give her the book（改同义句） This is Sandy's book.please give__ __ __.