Select the correct passive form of the given sentence.

He spent a lot of money on movies.

A lot of money was spent by him on movies.

The correct passive form of the given sentence is:

A lot of money was spent by him on movies.

To form the passive voice, we need to make the following changes:

• Change the subject of the sentence to the object, and vice versa. In this case, the subject is "he" and the object is "a lot of money", so the passive voice sentence would start with "A lot of money".
• Change the verb to the past participle form. The past participle of the verb "to spend" is "spent".
• Add the word "by" before the agent, which is the person who is performing the action. In this case, the agent is "him".