It is ( ) useful book.用a还是an?好人一生幸福.

（ ）useful book it is Is it useful enough?是什么意思? It is a black and white.It likes to eat bam-boo是什么意思不要一个字就完, O_____ ,it is a useful book it is useful.it is interesting 合并句子 It is useful to become reconciled now?额.It is useful to become reconciled now? it useful to it is useful to用法区别 请具体点哦! It is ____ useful book.I borrowed it yesterday. I have tired it,but it is still ＿(useful). How useful the information is. How useful the information it is. 哪个对? 英语：改为同意句How useful the book is!It is _____ _____ useful book. What is more useful after it is broken? what is more useful after it is broken? __ information it is Just put it into the computer .A How useful an B what useful C How useful D What a useful It is very useful to learn computer skills.___computer skills__very useful.动名词同义句转换 Boo-Boo-Boo 歌词 )goodbye to your father when you leave homewhat C( )is your english boo?回答：it's green How useful a book it is!这句话对么?