This book aims at encouraging teenagers,I'd buy it.这句话正确吗?

This book aims at encouraging teenagers,I'd buy it.这句话正确吗? This book is( )for your study,You'd better buy it 用help的正确形式 this is a very interesting book.I'll buy it.( ) This is useful book.He wants to buy it at one.A,a quite B,qu this is a v it may very interseting book.i 'll buy it ,_ a h i 什么（buy)you this book yesterday 正确形式填空1.you'd better _____(buy) a new book 2.it This is a very interesting book.I'll buy it,_______.A.how mu This is a vary interesting book.I'll buy it,______.A.however this is a very interesting book .I‘ll buy it,____ . a. how m This is a vary interesting book.I'll buy it,_.A.however much this is a very intersting book,i will buy it-- A.no matter h