问下it was …that省略句中能不能用that代替in which 还是指地点的话that后要in

问下it was …that省略句中能不能用that代替in which 还是指地点的话that后要in 英语that从句如果是被动句,动词be可以省略吗?that从句如果是被动句,动词be可以省略吗,在that存在的情况下.例如：it is the book that (was) borrowed yesterday. she asked me that who was my sister.这里that可省略吗?问什么? It seems（that）he was late for the train!表语从句,that可以省略吗? it happened(chanceed) that he was out 中的that可以省略吗? I found it was pleasant to be with your family that为什么省略? it was said that was all that that girl had said.详细介绍下此句型 From the photographs it seems clear that she was no beauty.其中的that 可以省略否? it was in the United States that I made the acquaintance of professor jones可以省略that吗 强调句的that (who) 有时可以省略It was my brother (that / whom) you saw the other day.这个说是可以省略为什么啊？. It looks like it's going to rain 这句话是不是省略了THAT?什么情况下才可以省略THAT My wife was wearing a hat that looked like a lighthouse.My wife was wearing a hat that it looked like a lighthouse.为什么中间要省略it? 英语翻译问下,这句话是只有这一种翻译吗?This book was so famous that it was translated into many languages. 这里it was为什么能省略 Who the watch belongs to was lost is unknown.was lost作定语吗?请详解,(that) was lost 什么情况下可以省略that。 I was disappointed and about to go home to get it.为什么and 后面的没有was?是省略了吗?什么情为什么and 后面的没有was?是省略了吗?什么情况下可以省略?、求教 在复合句中 可以省略主语吗?是我和约翰惹他生气了：it was I and yuehan that made her angry;that后面应该算从句了 但是从句是有主语的 但是这边没有 .(我理解有偏差?)还有我想问什么时候可以省略 i am sure(that)……that可以省略吗?在哪些情况下引导词可以省略？麻烦详解..