The key answer of exercise 6

b)

• The forger made mistakes: The horses' reins in the relief were inconsistent with other reliefs of that period, and the forger made a spelling mistake on the inscription. The father, George, then offered to sell the piece at a suspiciously low price.
• In the end, Shaun was sentenced to four years in jail, and the family had to pay back £400,000. The parents were spared prison sentences because of their age.

c)

• All of the phrases are used.
• Idioms → Let something slip means you accidentally reveal a secret.; Give the game away means get caught by accidentally revealing something; Be on the right track means your guess is not far from the truth.