Choose the correct answer:

1. Our new flat is _____ than our old one.

A. much big          B. more big           C. much bigger

2. Sophia isn't tall _____ to become a model.

A. enough            B. too                     C. more

3. We can't go on a picnic because it is raining _____.

A. heavily             B. heavy                C. much heavy

4. Robert is _____ young to stay at home on his own.

A. enough            B. too                     C. so

5. For _____ information about the course, please ask the secretary.

A. furthest           B. further                C. farther