This is （ ） useful book．（填冠词）

This is () useful story book.. This is （ ） useful book．（填冠词） This is that we all think it's very important.A such useful information B so useful information This is ______ useful book. A. a B. an C. the D/This is ______ useful book.A. a B. an C. the D/要解释 This is useful work改为否定句 This is useful work改为一般疑问句 this is ___to students of English A.a useful advice B.useful advice C.one of useful advices D.a pithis is ___to students of EnglishA.a useful advice B.useful adviceC.one of useful advices D.a piece of useful advice答案上说D,我想问问为什么 A horse is ( ) useful animal.A.an B.a C.the D.this This is ___ useful dictionary .选择：A.an B.a C.the D./ This is a ( ) useful advice A a B an C the D 应选哪一个急死了 not read this magazine?This is ___ some useful information is available求详细解Why not read this magazine?This is ___ some useful information is available A.what B.how C.whereD.that this is （）interesting book and it is also （）useful one. You should try your best to remember____from this class A.nothing useful B.useful somethingC.useful everything D.everything useful （ ）Is there ______in schoool today?A.something strange B.strange something C.anything strangD.strange anything ( )This invention is _____than that one.A.usefuler B.useful C.more useful D.the most useful ( )I'm very happy ______the beautiful flowe This is __________ that we all think it's very important.A such useful information B so useful information选哪一个 This is ____that all of us believe it's very important.选择:A:such useful information;B:so useful information选哪一个?为什么? （ ）useful book it is 这个台灯真的很有用.英文翻译：----- ------ （前面填）that this lamp is very useful.