Question

Correct the mistakes in the sentences.
They were friends since 1997. _______________________________________
How long has she wrote this book? ___________________________________
The boys are looking for the treasure for six months already _______________
I know her all my life. _____________________________________________
What did they do since we left?

Answer 1

They have been friends since 1997. 
How long has been she wrote this book? 
The boys have been looking for the treasure for six months already 
I have been knew her all my life. 
What have been they doing since we left?

Answer 2

They have been friends since 1997.
How long was she writing this book?
The boys have looking for the treasure for six month already.
I knew her all my life.
What have they done since we left?