Flight 737 ___.I must go.Thanks for all your kindness.a、is being announced b、 is announced c、 will be announced d、 was announcing

Flight 737 ___.I must go.Thanks for all your kindness.a、is being announced b、 is announced c、 will be announced d、 was announcing
Flight 737 ___.I must go.Thanks for all your kindness.
a、is being announced
b、 is announced
c、 will be announced
d、 was announcing

Flight 737 ___.I must go.Thanks for all your kindness.a、is being announced b、 is announced c、 will be announced d、 was announcing
首先可以肯定的是被动语态.因为航班不可能自己播报.
然后根据题目意思,说的是现在的情况,所以是进行时.
所以选择A.
be being done----进行时的被动语态
 
 

A，现在进行时，被动语态。正在被宣布(即将起飞)
希望有帮助!

A
这是现在进行时的被动语态，因为航班不会自己宣布，所以要用被动语态表示，希望我能帮助你解疑释惑。

A 现在进行时。