Has it been announced ——?A.when are the planes to take offB.that are the plans to take offC.where are the planes to take offD.when the planes ate to take off

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Has it been announced ——?A.when are the planes to take offB.that are the plans to take offC.where are the planes to take offD.when the planes ate to take off

Has it been announced ——?A.when are the planes to take offB.that are the plans to take offC.where are the planes to take offD.when the planes ate to take off
Has it been announced ——?
A.when are the planes to take off
B.that are the plans to take off
C.where are the planes to take off
D.when the planes ate to take off

Has it been announced ——?A.when are the planes to take offB.that are the plans to take offC.where are the planes to take offD.when the planes ate to take off
答案应该是D,但是其中ate打错啦是are.这是一个主语从句,it 是形式主语,when the planes are to take off 才是真正的主语.切记:从句不用倒装,所以A,B,C都是倒装,所以是错误的选项.

选D，要跟一个从句，来说明它宣布了什么内容。从句要用陈述语态，易判断宣布的是时间。When在这里不是疑问词。

D
根据意思，前半句是现在完成时，后面需跟和时间有关的状语从句，而后半句是以特殊疑问词开头的，所以句子的动词放在主语PLANES后面。
整句意思是：
飞机将在何时起飞被通告/告知了吗，

答案是D
翻译：有没有被宣布什么时候计划会实行呢？

when they will come has no been announce中为什么要加been? It is _____(announce) that the Class One has won the game. it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed announce it's always been you(It has always been it has been可以缩写成it's been it's been.的全称是不是 it has been... It has been raining these days. It has been e()hot this week. it has long been known that it has since been rebuilt怎么翻译 造句it has been +时间段+since从句it has been +时间段+since从句 it has been used和it has been in use有什么区别吗 是It has been paid还是 It has been paid for?