Comparatives and superlatives Correct the mistakes in these sentences. 1. My school is more bigger than this school

2. You look thiner than the last time I saw you.

3. Some people think that watching sport is more boring that playing it.

4. The Volga is longest river in Europe.

5. Ethan is much worst at German than Jake.

6. Do you think this exercise is the most difficult of the book?

7. That's the sillyest thing you've said today.