That he will come is certain.请问句子中的that有意思的吗,起什么作用?

英语翻译 That he will come to the party is certain There is no doubt that he will come. That he will come is certain.请问句子中的that有意思的吗,起什么作用? My mother is sure of that he will come.that 是否可省 句子是否正确 that he will come to the discussion is uncertain 中的that 可以省吗 he is come 用he will come back行不行? My mother is sure of that he will come.这是什么从句啊 It is likely that he will come.为什么这句话不对? that he will come is certain是什么从句 怎么看出来 she is in doubt ___ he will come?中间填充A that B.whether 英语句子改错（一处）It is no doubt that he will come there is no doubt that引导的是什么从句?如there is no doubt that he will come. It is strange that he ____back so earlyA.came B.will come C.had come D.should have come E.should come He tells us that he will come here.[改为一般过去时] It is strange that he ______back so early.A came B.will come C.had come D.should have come这个题怎么选啊,能讲一讲理由吗? My question is 中间要用什么连接he will come tomorrow.1.that 2.it 3.whether 4.this 英语翻译（ ）you ( ) that he will come tomorrow? 英语翻译I ---------- ---------- that he will come in two days.