CPE /C2 – Part 3 Word formation

CPE /C2 – Part 3 Word formation

Part 3 (Word formation)
What’s in Part 3? A text containing eight gaps. Each gap corresponds to a word. The stems of the missing words are given beside the text and must be changed to form the missing word.
What do I have to practise? Vocabulary, in particular the use of affixation, internal changes and compounding in word formation.
8 questions worth one mark each.

1. Population growth has often been cited as something that is _______________.
sustain
2. The existsence of ghosts or other phenonmena have never been proven, but

natural