Some formal & informal expressions

                             

Informal expressions: Formal expressions: 
What did she write about?  About what did she write? 
I am supposed to call him.  Aren’t I?  Am I not? 
None of the girls are present.  None of the girls is present. 
There is a book and a pen on the table There are a book and a pen on the table. 
Somebody lost their book  Somebody lost his book 
The public was friendly. They were very happy. 
It was composed of thousands of people. The public were friendly. They clap their hands. 
You can call me at midnight.(Giving permission) You may call me at night.(Giving permission) 
It is fun reading this book.  Reading this book is fun. 
It is fun reading this book.  It is fun to read this book. 
He expected less students.  He expected fewer students. 
If I was you.  If I were you. 
She looks like she dances.(like is followed by a noun object) She looks as if / as though she dances.

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