Which are the parenthetical words in each sentence?

Tick the correct answer.

Ben, as everyone knows, has invented a new way of recycling litter.

• Ben
• as everyone knows
• has invented a new way of recycling litter

Cats, as I was saying, are the most faithful pets in the world.

• Cats
• as I was saying
• are the most faithful pets in the world

You have to tell us your address, after all.

• You have to tell us your address
• after all