The answer isn't in the book.
Nowhere in the book is the answer.
She didn't tell me you were sick!
At no time did she tell me you were sick!
Learning English is pretty difficult.
What is pretty difficult is learning English.
I'm sorry for lying to you.
What I'm sorry for is lying to you.
I never wanted to to go to her party.
Never did I want to go to her party.
