11.Dan's health has really ... ever since he stopped eating junk food .
a)developed b)increased c)improved
13.Nathan is ... selfish to care about what others thinks of him
a)very b) too c)enough
15.We ... half the rubbish on the beach by the time jeft arrived
a)have cleaned up b) had cleaned up c)had been cleaning up
8. Make sure you wear a hat when you're out in the .. weatcher
a)steaming b) boiling c) baking