The key answer of exercise 1

a)

1. It is a review website.
2. You can read people's reviews of, for example, music albums and about their general opinion on things.

b)

1. rave → (v) say wonderful things; about → (n) strong praise for something
2. rant → (v) say terrible things; about → (n) strong criticism of something
3. crave a fresh perspective → desire a different opinion or new way of looking at things
4. speak their mind → say what they think
5. let your feelings fly → allow your emotions to show
6. (give somebody) a piece of your mind → tell someone what you think of them or their behaviour, often angrily

c)

1. crave a fresh perspective
2. rant
3. a piece of your mind
4. speak his mind
5. let your feelings fly
6. rave