My son took his English Lit GCSE today two pages of the booklet stuck together?

He answered the the first question on pages 1, 4 & 5 before he realised. He then went back and answered question 2 on pages 2 and 3 (the pages that originally stuck together). He marked the booklet clearly with the questions numbers and put continued on page 4 at the bottom of page 1 - will the person marking the paper penalise him for this?