has it been announced when the plane is to take off中为什么用when
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has it been announced when the plane is to take off中为什么用when
has it been announced when the plane is to take off中为什么用when
has it been announced when the plane is to take off中为什么用when
这句话的意思是通知飞机起飞的时间了吗?
when是对it的说明,是一个主语从句,代表起飞的时间,所以就要用when.
it被通知,这个it是什么呢,后面就用when来说明了,是起飞的时间.
飞机起飞的时间,所以要加when
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?