Question Detail

Rahul has to see it or to believe it.

It has to be saw or to be believe by Rahul.
It has to be seen or to believe by Rahul.
It has to be seen or to be believe by Rahul.
It has to be seen or to be believe by Rahul.

Answer: Option C

1. His behaviour surprised me.

I was surprised for his behaviour.
I was surprised at his behaviour.
I was surprised with his behaviour.
I was surprised on his behaviour.

Answer: Option B

Explanation:

Note: We use "at" preposition with word "surprised"

2. He helps me.

I am helped.
I am being helped.
I am helped by him.
He helped by me.
I am being helped by him.

Answer: Option C

3. My father loves me.

I loved my father.
I was loved by my father.
I were loved by my father.
I am loved by my father.

Answer: Option D

4. 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

5. 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.