Which one of the following is the correct Passive form of the sentence?

For the moment she was hiding her grief very well.

For the moment, her grief was being hidden very well.

The correct answer is Option (2) - For the moment, her grief was being hidden very well.

The correct passive form of the sentence "For the moment she was hiding her grief very well." is:

For the moment, her grief was being hidden very well.

• In passive voice, the focus is shifted from the subject (the doer of the action) to the object (the receiver of the action).
• The original sentence emphasizes "she" as the subject performing the action of hiding, while the passive version emphasizes "her grief" as the subject receiving the action of being hidden.
• The other options either misuse verb forms or do not maintain the correct structure of passive voice.