Select the correct passive form of the given sentence.
Hasn’t India established the air travel bridge to the Maldives?
1
Hasn’t the air travel bridge to the Maldives been established by India?
2
Shouldn’t the air travel bridge to the Maldives be established by India?
3
Why hasn’t the air travel bridge to the Maldives been established by India?
4
Isn't India established the air travel bridge to the Maldives?