Educational worksheet teaching proper nouns with examples and practice sentences.

Final Answer:
1. Common nouns: boy, King’s Park, train station → Proper nouns: Peter, King’s Park, train station
2. Common nouns: father, Kent, England → Proper nouns: Tom, Kent, England
3. Common nouns: football, team, Saturdays, coach → Proper nouns: Mr. Steven’s
4. Common nouns: planet → Proper nouns: Jupiter
5. Common nouns: toys, magazines, corner-shop, bus station → Proper nouns: ToysRus, Potan Bus Station

Wait — correction: per instructions, we must underline common nouns and circle proper nouns, but since this is text-only, we’ll indicate them clearly.

Let me re-express the correct identification based on standard grammar rules:

- Proper nouns are specific names (always capitalized): people (Peter, Tom, Mr. Steven’s), places (King’s Park, Kent, England, Potan Bus Station), organizations (ToysRus), brands (iPhone7 — though not in sentences), and unique things (Jupiter).
- Common nouns are general words: boy, father, football, team, etc.

Now go sentence by sentence:

1. *Peter* (proper), *boy* (common), *King’s Park* (proper), *train station* (common)
2. *mother’s father* → “father” is common; *Tom* (proper), *Kent* (proper), *England* (proper)
3. *football* (common), *team* (common), *Saturdays* (common — days of week are proper nouns! Wait — correction: days of the week ARE proper nouns in English. So *Saturdays* is proper. Also *Mr. Steven’s* is proper.)
→ Proper: Mr. Steven’s, Saturdays
→ Common: football, team, coach
4. *Jupiter* (proper), *planet* (common)
5. *ToysRus* (proper), *magazines* (common), *corner-shop* (common), *Potan Bus Station* (proper)

But the instruction says: underline the common nouns and circle the proper nouns.

Since we can’t underline/circle in plain text, and the task asks for the final answer only (ExplainAnswer = false), we list each sentence with proper nouns identified.

However, the expected output format says:
→ Final Answer: [Provide only the final correct answer.]

Given typical worksheet expectations, the answer should be the list of proper nouns in each sentence (as they are to be circled), and common nouns underlined — but since we can only give text, and the instruction is strict, the cleanest "final answer" is to list the proper nouns (to be circled), as that’s the key task.

Let’s extract only the proper nouns from each sentence, as those are what need to be circled:

1. Peter, King’s Park, train station? — No: “train station” is not a proper noun unless it's named (e.g., “Central Train Station”). Here it's generic → common. So only: Peter, King’s Park

2. Tom, Kent, England

3. Mr. Steven’s, Saturdays
(Note: “Saturdays” is a proper noun — days of week are always capitalized and treated as proper nouns.)

4. Jupiter

5. ToysRus, Potan Bus Station

So final answer (list of proper nouns per sentence):

1. Peter, King’s Park
2. Tom, Kent, England
3. Mr. Steven’s, Saturdays
4. Jupiter
5. ToysRus, Potan Bus Station

But the problem says “underline the common nouns and circle the proper nouns in these sentences.” Since we must give *only* the final correct answer, and it's a worksheet, the expected output is likely the identified words.

I will format the final answer as a clean list per sentence, indicating proper nouns (since those are circled — the main action).

Final Answer:
1. Peter, King’s Park
2. Tom, Kent, England
3. Mr. Steven’s, Saturdays
4. Jupiter
5. ToysRus, Potan Bus Station