5. a) I am good at sport because I practice a lot.
b) Do you belong to a sports club?
c) I really enjoyed myself when I was on holiday.
d) When we rode horse-riding, I had the biggest horse.
e) How often do you go to the cinema?
f) I don't keep a diary but I do write a blog sometimes.
6) 1. Why are you so good at Maths?
2. Did you enjoy yourself at the zoo?
3. Nobody listens to that sort of music anymore!
4. Every time we go skateboarding, I fall off.
5. Learning to ride a bike is easy.
6. Let's go horseback horse-riding!