Final answer:
This detailed answer explains whether the underlined words in the exercise are adjectives or adverbs.
Step-by-step explanation:
1. He walked very fast. - Adverb
2. He came early yesterday. - Adverb
3. How far is it from here to the airport? - Adjective
4. Have you waited long? - Adjective
5. Stone is hard and paper is soft. - Adjective
6. She has curly hair but her husband has straight hair. - Adjective
7. This chair is low and that one is high. - Adjective
8. My neighbour is very friendly. - Adverb
9. This point of grammar is direct and in direct speech. - Adjective
10. Am I right or wrong? - Adjective
11. That's a very fast car. - Adverb
12. Ben runs very fast. - Adverb
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