Question

Which sentence is in the passive voice?

a. The librarian is now reading a story to the children.
b. In the middle of the night, the mother calmed the baby by rocking him.
c. Some penguins waddled across the glacier.
d. The role has been performed by several actors.

Answer 1

The correct answer is D. The role has been performed by several actors. This is because all other options use active forms. Active voice of the last example would be "Several actors have performed the role".