Question

Before the main performance, the audience was entertained by a comedian.

Answer 1

Before the main performance, the comedian entertained the audience. This is because, on the other choices the active voice changes. For example, the one right above it. “ Before the main performance, the comedian was entertained by the audience.” It cannot be that choice because the audience didn’t entertain the comedian that’s his/her job.

Answer 2

the answer is b. before the main performance, the comedian entertained the audience.