Which of the three inventions is_____(useful)one?

Which is the biggest of the three?Which is the smallest of the three? Which is ___problem of the three?I think the frist one is ___than the other two.(difficult) [w23] I was given three books on sewing,the first _______ I really emjoyed.A.that B.which C.of which D.of that翻译 ,并分析. Which is the smallest number of the three ? 是什么意思? 请问A:which of the three ways shall i take to the village?B:any way as you please Which three letters can stand ofI see you I was given three books on cooking ,the first___I really enjoyed.A of that B of which C that D which How can i answer the three questions of my life:which way what to do?who to love?Which question should i answer first? Which of the three inventions is_____(useful)one? carry this bag which is the_____(light) of the three Which picture is _( beautiful ) of the three. 一个英语问题,Which of the three ways shall I takeWhich of the three ways shall I take to the village?___way as you pleaseA.Each B.everyC.anyD.either Which letter is two to the left of the letter immediately to the right of the letter which is three I was given three books on cooking ,the firt ___i really enjoned A of that B of which C that D whic I was given three books on cooking,the first ( )I really enjoyed 答案是填of which为什么不能填that,把first看作一个名词呢 Take three letters from pillow to make you sick.Which of the following is the word left? A I B Two —Which of the three ways shall I take to the village?--( ) way as you please.A:Each B:Every C:Any D:Either为什么? 非限定性定语从句的题I was given three books on cooking,the first ____ I really enjoyed.（2006浙江）A.of that B.of which C.that D.which怎么翻译,选什么