Select the correct passive voice of the given sentence.

She is making a beautiful beaded curtain.

A beautiful beaded curtain is being made by her.

The correct passive voice form of the given sentence "She is making a beautiful beaded curtain" is A beautiful beaded curtain is being made by her.

The active voice of the sentence is "She is making a beautiful beaded curtain." This sentence is in the present tense, which is used to describe an action that is happening now but is not finished. The passive voice of the sentence is formed by putting the subject of the active sentence after the verb "to be" and the present participle of the main verb. In this case, the subject of the active sentence is "she" and the main verb is "make." The past participle of "make" is "made." So, the passive form of the sentence is "A beautiful beaded curtain is being made by her."

The other options are incorrect because:

• A beautiful beaded curtain was being made by her." This sentence is in the past progressive tense, which is used to describe an action that was happening but is not finished. However, the action of making a beautiful beaded curtain is still happening.
• A beautiful beaded curtain was made by her." This sentence is in the past tense, but the action of making a beautiful beaded curtain is not finished.
• A beautiful beaded curtain is made by her." This sentence is in the present tense, but the action of making a beautiful beaded curtain is not happening now.