a)

A. The text is a short note. It requests the reader to make some shopping.

B. The text is a shop advertisement. It invites people who need some camping equipment.

C. The text is a message. It informs the reader about the sent package.

D. The text is an e-mail. It gives advice to the reader about buying a TV.

b)

1. C

 - The text mentions 'treats for the cat'. The other answers are incorrect because Charlie will have to go to supermarket and butcher's and he won't need to go to the laundrette.

2. C

 - The text mentions 'huge discounts on outdoor wear'. The other answers are wrong because the tents prices start from £50 and it doesn't mention bicycles.

3. A

 - The text mentions holiday in USA, so the package is probably sent from the other country. The other answers are wrong because the text doesn't mention anything about Jason's cousin going on holidays and that she'll get the package before Saturday.

4. B

 - The text mentions 'better deal elsewhere or even online'. The other answers are wrong because the text doesn't mention buying the same TV and also doesn't discourage buying Sanyang TV.