这of是怎么回事?Good books are of great value to students.没见过of用在这位置啊,这是什么用法?

这of是怎么回事?Good books are of great value to students.没见过of用在这位置啊,这是什么用法? Take good care of the books. a lot of story books are on sale,but few good ones.few good ones.这句话好像不正确哦? This book is__(good）of the four books. Of all the books,i like this one _______(good). You must take good care of your books被动语态 A good deal of money has been spent on books. neither of the books is good 如何翻译? good books is the results of hard work 怎么翻译 lose oneself in a world of good books是什么意思 Only some of the books are good for the children.( ) ( )the books are good for the children 同义句 _______ will be good for you.A Either of the book B Either of the books C Every of the books She has written a lot of books,but___ good ones.A.anyB.someC.fewD.any she has written a lot of books,but few good ones ____are good books.A.All they B.All of them C.They all 为什么? （ ）（either) of the books is good .Would you like to try a( )(three) one All kinds of books with good price are ready for you! I find a pretty good (collect)of books in it.填上恰当的形式