It is unknown that whether the 2016 Olympic Game will be held in NewYork.是什么句型,什么从句

it is unknown if the ruler is alive or dead等同于IT is unknown that the ruler is alive or dead It is unknown that whether the 2016 Olympic Game will be held in NewYork.是什么句型,什么从句 ___ is unknown to others but you that I'll change another job.A what B It W hat is that? a box A There is B it C It is D That 英语翻译In cases where the explanation is unknown the scientific point of view is that there is a reason if it can only be discovered 单选,_ is still unknown when the president is going to make a public speech.a.which b.that c.it d.what What is that?It's a w这一句有哪些错误? Does she like to have tea or coffee? It is unknown( )she would like to have.A.how B.as C.that D.which in case where the explanation is unknown the scientific point of view is that there is reason if itin case where the explanation is unknown the scientific point of view is that there is reason if it can only be discovered 为什么用WHERE something is unknown是什么意思 “Study is unknown”是什么意思? That is w ( )many people say it is a world language whether John will get that present is still unknown是什么从句问题是什么从句,而不是翻译. love is an unknown place that no saying from all around the world can explain download failed an unknown error occurred make sure that your internet connection is fully working That lion is w( ) ,sometimes hes w( ) Where did she put it is unknown to us all.哪里错了 求一高中英语选择题分析^-^谢谢啦Great man are often unknown ,or（ ） is worse mistaken.A that B.it C.which D.what 答案是D 想问一下为什么其他不行 有什么规定吗?