Question

'A lion cannot be killed in his den.'
CONVERT TO ACTIVE VOICE

Answer 1

One cannot kill the lion in his den.

Answer 2

The given sentence, 'A lion cannot be killed in his den.' can be re-writen in active voice in the following way:

'You cannot kill a lion in his den'.

* Here "be killed" is in present participle form in passive voice.

* So, to change the question to active voice we need to change the verb to simple present.

* So, "cannot be killed" changes to "cannot kill".