I asked Susheela why she was sad
Answer : D. Susheela was asked why she was sad.
Sahil spoke the lie
Answer : D . The lie was spoken by Sahil.
He arrived at the conclusion
Answer : A . The conclusion was arrived at by him
I must help him.
Answer : D . He must be helped by me.
We ought to have saved our environment
Answer : C . Our environment ought to have been saved.
I prefer making toys for my children rather than buying them in the toy store.
Answer : B . Preposition
Everybody hates him for his repulsive looks.
Answer : B . Adjective
I was pleasantly surprised when she showed up at the door unannounced
Answer : A . Adver
He is an old friend of mine
Answer : B . Noun