Question

He was obliged to go
Change the voice

Answer 1

Given sentence :-

He was obliged to go.

Given sentence is in its passive form, we have to change it to active voice. Here, the doer of the action is hidden. We generally add the doer of the action if it is hidden in passive form.

Here, we will add "circumstances" as the doer of the action. Hence, the actual passive form would be :-

He was obliged to go (by circumstances)

So, now just convert it to active voice.

We get the answer :-

Circumstances obliged him to go.

Answer 2

He was obliged to go.

=> He obliged him to go.