Question

they are going to park change into passive voice​

Answer 1

Answer:

It can not be changed as it has intransitive verb.

Answer 2

They are going to park

Here verb is Go

The verb Go is Intransitive

The verb can't be used in passive voice

eg: I am sleeping on the bed.

here verb is Sleep

it is intransitive verb

so we can't make it as ,

The bed is being slept by me××××