Answer :
Sure, let's analyze the sentences one by one:
1. **I remember Grandmother when I smell freshly baked bread with butter.**
- The prepositional phrase is "with butter," modifying "baked bread."
- It is adjectival, answering the question "What kind of baked bread?"
2. **Many teenagers work part-time during high school.**
- There is no prepositional phrase in this sentence to underline and circle.
3. **The aroma of my grandmother's baking was often strong.**
- The prepositional phrase is "of my grandmother's baking," modifying "aroma."
- It is adjectival, answering the question "What kind of aroma?"
4. **When I was young, Grandmother let me help make soft rolls with butter.**
- The prepositional phrase is "with butter," modifying "soft rolls."
- It is adjectival, answering the question "What kind of rolls?"
5. **Some work at fast food restaurants, while others work outdoors.**
- The prepositional phrase "at fast food restaurants" modifies "work."
- It is adverbial, answering the question "Where do some work?"
In summary, the prepositional phrases in these sentences can be either adjectival or adverbial, depending on whether they modify a noun or a verb. It's important to identify the relationship between the prepositional phrase and the word it modifies to determine its function in the sentence.