Tony is looking for a backpack. Read Terry's email and complete it with the words in the box.

Hi Tony,

There are different backpacks at the department store in the city centre. There are three special offers. The 'Whizz' backpack isn't too bad, but I don't think it's the best choice. It isn't big enough. The 'Super' backpack is bigger than the 'Whizz', but in my opinion the 'Power' backpack is the best. First of all, it's big enough for books and a tablet. What's more, it has a key. Finally, it's the cheapest backpack.

Bye for now,

Terry