Adverbs can be used to compare actions. There are two types of adverbs:

• Comparative adverbs are adverbs that compare how two actions are done.
• Superlative adverbs are adverbs that compare how more than two actions are done.

There are also several rules that we need to remember when dealing with adverbs:

• For adverbs that are one syllable, we add "-er" to to the ending of the word to make the comparative adverb. If the adverb is superlative, we add "-est" to to the end of the end of the superlative adverb.
• For adverbs that are more than one syllable, we add the word "more" before the adverb to make the comparative adverb. If the adverb is superlative, we add the word "most" before the adverb.

In our sentence, we are comparing how the girl and the boy ran so we have two actions; thus, we are looking for a comparative adverb. Also, looking at the adverbs in our answer choices, we are dealing with a one syllable adverb.

Remember, we have are looking at comparative adverbs, with one syllable. Looking back at our rules, we want to add "-er"; thus, the correct answer is "faster".

Adverbs can be used to compare actions. There are two types of adverbs:

• Comparative adverbs are adverbs that compare how two actions are done.
• Superlative adverbs are adverbs that compare how more than two actions are done.

There are also several rules that we need to remember when dealing with adverbs:

• For adverbs that are one syllable, we add "-er" to to the ending of the word to make the comparative adverb. If the adverb is superlative, we add "-est" to to the end of the end of the superlative adverb.
• For adverbs that are more than one syllable, we add the word "more" before the adverb to make the comparative adverb. If the adverb is superlative, we add the word "most" before the adverb.

In our sentence, we are comparing how Hannah walked to school and how her brother walked to school so we have two actions; thus, we are looking for a comparative adverb. Also, looking at the adverbs in our answer choices, "slowly" and "slowest" we can tell that we are looking at the rule for more than one syllable.

Remember, we have are looking at comparative adverbs, with more than one syllable. Looking back at our rules, "more" is the correct word to add before the adverb "slowly"; thus, the correct answer is "more slowly".