Active/Passive Voice

Is the following sentence written in the passive or active voice?

The thieves have been arrested by the police.

Change the following sentence from passive to active voice.

The thieves have been arrested by the police.

Is the following sentence written in the passive or active voice?

Ms. Germann has graded the vocabulary quizzes.

Is the following sentence written in the passive or active voice?

They are painting the walls.

Is the following sentence written in the passive or active voice?

The car has been fixed by the mechanic.

Change the following sentence from passive to active voice.

The car has been fixed by the mechanic.

Is the following sentence written in the passive or active voice?

The fruit loops were spilled by Gianna.

Change the following sentence from passive to active voice.

The fruit loops were spilled by Gianna.

Is the following sentence written in the passive or active voice?

Tommy rode the rollercoaster.

Is the following sentence written in the passive or active voice?

The golf ball was hit by Collin.