Change from Active to Passive

Please give it a try yourself first, and then we will check your effort.

Try this: identify the object in the original sentence; make it the subject of the new sentence; don't forget a form of the verb 'to be'.

AnonymousA thunderstorm often turns milk sour.

Hint: Your answer will be like this:

Milk ......................thunderstorm.

CJ

Hi,
Milk is often turned sour by a thunderstorm.

Sri

We have asked the original poster to do the work, Sri. In the future, when we ask the poster to make an effort, do not submit the answer before the poster has attempted it.

Respected Mr. Micawber,
I am extremely sorry to answer the question. I do take take your suggestion into consideration.
Thanks and Regards,
Sri

A thunderstorm often turms milk sour