Question Detail

I am drawing the picture.

The pictures were being drawn by me.
The picture is being drawn by me
The picture was being drawn by me
The picture is being drawing by me
The picture is been drawn by me

Answer: Option B

1. They are not playing the game.

The game has not being played by them.
The game is not being played by them.
The game is being not played by them.
The game has being not played by them.

Answer: Option B

2. We ought to have saved our environment.

Our environment ought to had been saved.
Our environment ought to have been save.
Our environment ought to have been saved.
Our environment ought to have saved.

Answer: Option C

3. We must have obeyed our teachers.

Our teachers might have obeyed.
Our teachers might have been obeyed.
Our teachers must have been obeyed.
Our teachers must have obeyed.

Answer: Option C

Explanation:

If we have "Subject + Modal Auxiliary verb + have + third verb + object"
then we change it to

Passive subject + Modal Auxiliary verb + have been + third form + by + passive object.

Modal Auxiliary verb are : can, could, shall, will, may, might, should, would, must, ought to etc.