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.
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
英语人气:328 ℃时间:2019-12-21 17:28:07
优质解答
我来回答
类似推荐
- When the plane is to take off has not been announced 飞机何时起飞还没有宣布
- Has it been been announced if the planes are to take off?这个句子对吗?
- —When is the plane to Shanghai going to take off?
- 天下着大雨英语翻译.It -----------(天下着大雨)-hard when the plane take off
- —when are you leaving?—My plane ___ at 10:30.A.takes off B.took off C.has taken off D.will take
猜你喜欢
- 1金属的电阻率为什么随温度升高而增大
- 21米花布8.5元,4.2米花布多少元?
- 3要使一个电阻为10Ω、额定电压为6V的电灯连在18V的电源上正常工,那么电路必须( ) A.并联一只30Ω的电阻 B.并联一只20Ω的电阻 C.串联一只30Ω的电阻 D.串联一只20Ω的电阻
- 4访谈一个爱读书的人如何提问?
- 5一个正方形草坪边长8米,四周有一条1米宽的路.在小路靠草坪的一侧每隔1米放1盆红花、四个顶点都要放.
- 6I have something I need to tell you 为什么加”I“ 做什么成分?
- 7甲数除以乙数的商是2又3分之2,甲数与乙数的差是25,甲数是?
- 8为什么说通过任意闭合曲面的电通量不一定为零?而磁通量一定为零?
- 9二次函数y=2x2+bx+c的顶点坐标是(1,-2),则b=_,c=_.
- 10体积为4.0立方厘米,密度为1.045,等于多少克?