关于THAT在这里的用法选择题The population of India if smaller than ___of china that但是为什么呢?为什么不是IT

关于THAT在这里的用法选择题The population of India if smaller than ___of china that但是为什么呢?为什么不是IT 请问that在这里的意思及用法 that在许多句子里的用法It's pity that.这个that是什么意思呢,或是什么用法?还有silence is the sleep that nourishes wisdom这里的that又是什么意思呢 问一个that从句的用法He is not the impractical bookworm(that)he used to be请问这是什么从句,that在这里做什么成分 关于英语to的用法Most people know that MarieCurie was the first woman to win the Nobel Prize这里to做什么成分 that在这里是什么用法?此句analysts do agree on another matter:that the number of the homeless is increasing.中,that是什么用法?冒号是怎么回事儿,影响语法的使用吗? 这里that的用法I know that there reaches me across the vast of time no more than a faint and broken echo.that在这里作从句的主语还是引导从句的关系代词 关于the的用法cut up the two apples这里的the用不用? the most formal role is that of chairman that 和 of 分别是啥用法在这里?the most formal role is that of chairman that 和 of 分别是啥用法在这里? The only funny things we heard that evening came from the advertiser.这里的that是什么用法, The only funny things we heard that evening came from the advertiser.这里的that是什么用法,新概念289课 We all left the police station,convinced that Tom was innocent.这里的convinced是什么用法? Besure to choose the hair products that suit your type of hair.这里that的用法,对that的用法一直有点搞, 关于词汇的英语选择题She was worried about the side effects of the medicine,but her doctor ___ her that it's harmless.A.retrieved B.reassured应该选哪个呢?这两个词分别是什么用法? Is that book the one he borrowed on Friday?是定语从句吗?one 在这里的用法,并翻译整句话, The relation of genius to talent is the same as that of instinct to reason中that of的用法!去掉不用行么?这里是什么用法? 关于very的用法句：……,the very idea seems absurd.请问这里的very是什么用法? 宾语从句中 what which的用法.The earth is a huge ball,seventy percent of covered with water.这里为什么用which不用what?什么时候在宾语从句中用what?P.S.that 在哪些从句中充当什么成分时可省?请具体.