the lesson that we should remember forever ,that 是什么词性?在句子中充

the lesson that we should remember forever ,that 是什么词性?在句子中充 we should remember it forever 中的词性和成份 that 在这个句子中做什么成分?词性是什么? The lesson we learn the big fire is that we should be more a Baby; promise me that we should be together forever!Stubborn Remembers should remember,forgot that should forget,the chan I remember all the things that we As a student,we should remember that homework always comes__ 翻译 Time that we forget that remember the sand filter 以下句子中that是什么词性?起什么作用? That's next Thursday .next是什么词性,在句子中做什么成分? 问个英语句子The teacher recommened that we （should）buy that refere