2 Are the words in italics adjectives or adverbs?

Solution:

1 a Smoking is a bad habit. (adjective)

b We lost the match because we played badly. (adverb)

2 a Please listen carefully. (adverb)

b Jane's a careful driver. (adjective)

3 a It's a hard life. (adjective)

b I work hard and play hard. (adverb)