it was found to be over thirteen feet long 请问to be如何理解和解释,

it was found to be over thirteen feet long 请问to be如何理解和解释, it was found to be over thirteen feet long这里的to be 可以省略吗? I found it was pleasant to be with your family.was是什么成分 谓语是哪个 I found it was pleasant to be with your family that为什么省略? When he came back for his car, it was nowhere .A．to be found B．to find C．being found D．found详解 My watch is nowhere to be found,I must have dropped it when I was on the bus为什么是to be found it was+形容词后面为什么能接for引导的从句?新概念第二册93课的第7题（选择题）原题如下：A site had to be found for it.it was necessary____for it(a)a site to be found (b)for to be found a site (c)for a site to be found ( A site had to be found for it.A.a site for it; B.for a site to be found.抱歉。上面的题目输入时出了错。更正如下。A site had to be found for it.It was necessary____ for it.选择项：A.a site for it； B.for a site to be found。 a site had to be found for it. it was necessary___for it1 a site to be found 2 for to be found a site 3 for a site to be found 4 to be found a site请问选择哪一个,及分别说出每个为什么对与错 I went to the post office,only_____ it was closed． A.finding B.to find C.to be finding D.founD是found When it was eventually brought to shore,it was found to be over thirteen feet long.关于主句的时态it was found to be是不是应该改成it had been found to be么?过去的过去不是应该用过去完成时吗? A site had to be found for it.It was necessary ____ for itA a site tobe foundB for a site to be foundC to be found a site 1.His English was so poor that he found it difficult to make himself _.A,understood C,be understood i____the room to be empty but found it occupiedA had thoughtB have thoughtC didn't thinkD was thinking it was a good way to learn things that couldn't be easily found in life翻译 i glanced at my watch that was surprised to found it was 1 o'clockglanced at 为什么不能改成noticed 或saw I found that it was easy to heip others. the eight o'clock news _____(say) that it was going to be very hot tomorrow