Question

the simple subject of a sentence is the main word or words in the complete subject.
the cape around abes neck was too tight.
underline the complete subject of each sentence.
circle each simple subject.

1. my aunt alice plays the saxophone.
2. my moms car seats five people.
3. the plants in the living room need watering.
4. the smell of scented candles filled the air.
5. my cousins operation was a success.
6. a loud noise from the cave startled us.
7. this heavy box is full of books.
8. those bananas dont look ripe.
9. her birthday party is saturday.
10. everyone in my group worked together.
11. the red marker has run out of ink.
12. that video game was just released

Explanation:

1. For the sentence "My Aunt Alice plays the saxophone", the complete subject is "My Aunt Alice" (it is the whole part that tells who does the action) and the simple subject is "Aunt Alice" (the main noun - person in the subject).
2. In "My mom's car seats five people", the complete subject is "My mom's car" (the whole thing that is the doer of the action - seating) and the simple subject is "car" (the main thing in the subject).
3. For "The plants in the living room need watering", the complete subject is "The plants in the living room" (the whole group of things that need watering) and the simple subject is "plants" (the main noun in the subject).
4. In "The smell of scented candles filled the air", the complete subject is "The smell of scented candles" (the whole entity that filled the air) and the simple subject is "smell" (the main noun in the subject).
5. For "My cousin's operation was a success", the complete subject is "My cousin's operation" (the whole event that was a success) and the simple subject is "operation" (the main noun in the subject).
6. In "A loud noise from the cave startled us", the complete subject is "A loud noise from the cave" (the whole thing that startled) and the simple subject is "noise" (the main noun in the subject).
7. For "This heavy box is full of books", the complete subject is "This heavy box" (the whole object that is full) and the simple subject is "box" (the main noun in the subject).
8. In "Those bananas don't look ripe", the complete subject is "Those bananas" (the whole group of things that don't look ripe) and the simple subject is "bananas" (the main noun in the subject).
9. For "Her birthday party is Saturday", the complete subject is "Her birthday party" (the whole event that is on Saturday) and the simple subject is "party" (the main noun in the subject).
10. In "Everyone in my group worked together", the complete subject is "Everyone in my group" (the whole group of people that worked) and the simple subject is "Everyone" (the main pronoun - representing the people in the subject).
11. For "The red marker has run out of ink", the complete subject is "The red marker" (the whole object that has run out) and the simple subject is "marker" (the main noun in the subject).
12. In "That video game was just released", the complete subject is "That video game" (the whole thing that was released) and the simple subject is "game" (the main noun in the subject).

Answer:

1. Underline: My Aunt Alice; Circle: Aunt Alice
2. Underline: My mom's car; Circle: car
3. Underline: The plants in the living room; Circle: plants
4. Underline: The smell of scented candles; Circle: smell
5. Underline: My cousin's operation; Circle: operation
6. Underline: A loud noise from the cave; Circle: noise
7. Underline: This heavy box; Circle: box
8. Underline: Those bananas; Circle: bananas
9. Underline: Her birthday party; Circle: party
10. Underline: Everyone in my group; Circle: Everyone
11. Underline: The red marker; Circle: marker
12. Underline: That video game; Circle: game