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. Bring the bottle of juice.

Let a bottle of juice be brought.
Let bottle of juice be brought.
Let a bottle of juice brought.
Let a bottle of juice be bring.

Answer: Option A

2. They may win the battle.

The battle may be win.
The battle may be won.
The battle may be won by them.
The battle may won.

Answer: Option B

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.