Choose the correct form of the adjective.

Here are the answers: 1. Which animal is taller - a giraffe or an elephant? (Answer: taller) 2. A Lamborghini is faster than a Ford. (Answer: faster) 3. Wow, this bunch of flowers is so big! I guess it's the biggest in the shop. (Answer: the biggest) 4. My bottle of shampoo is more expensive than yours. (Answer: more expensive) 5. It's the best bar of chocolate that I've tried in my life! (Answer: the best) 6. Which of these TVs is better? The left one or the right one? (Answer: better)