I have to turn this imperative sentence into passive form-
Be punctual or they will eliminate you.
I think the right one is-
You are suggested to be punctual or you will be eliminated by them.
But the 1st portion of my answer doesn't satisfy the basic rules of voice-change of imperative sentences that I have read so far in my books.
Please show me any better way.
Best Answer
I'm a native American English speaker, and I find it difficult to understand how "be punctual" can be made passive. Perhaps your book is only asking you to change the part after "or". You got that exactly right:
What I am about to say might not be relevant to your assignment, but often, in a "do this or that will happen" sentence, we put the second part in the form of an imperative, without any indication of future tense, but it still refers to the future consequence of failing to do the first part. For example:
Here are some very well-known examples: