Complete the sentences with the suitable infinitives: to understand, to fly, to read, to...

Question

Complete the sentences with the suitable infinitives: to understand, to fly, to read, to know, to buy, to see.

This is the book for you__.
She will be the last person __ the truth.
The old lady is difficult __.

Answer 1

This is the book for you to read.
She will be the last person to know the truth.
The old lady is difficult to understand.

Answer 2

This is the book for you to read.
She will be the last person to know the truth.The old lady is difficult to understand.