2.I only recognised him when he came into the light.

-> Not until …he came into the light did I recognize him……………..

3.e is fond of her nephew although he behaves terribly.

-> She is fond of her nephew in spite of his terrible behavior …………………………………………….

4. I met the author one day, I'd ask him to sign my copy of this book.

-> Were I to meet one day,  I'd ask him to sign my copy of this book. ……………………………………………………………………...

5. “ You stole my best cassette, Amanda”, said William.

->William accused Amanda of stealing his cassette ……………………………………………………………..

6.Someone rang the alarm as soon as the burglar left the building.

-> No sooner had the burglar left the building than someone rang the alarm…………………………………………………………