Comma Quiz worksheet for grammar practice, featuring a cartoon scout and sentences to correct with proper comma usage.
Comma Quiz worksheet with instructions and nine sentences to rewrite correctly, featuring a cartoon boy scout and the 15Worksheets.com logo.
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Show Answer Key & Explanations
Step-by-step solution for: Commas Worksheets - 15 Worksheets Library
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Show Answer Key & Explanations
Step-by-step solution for: Commas Worksheets - 15 Worksheets Library
Let’s go through each sentence one by one and add commas where they’re needed. Commas help separate ideas, show pauses, or set off extra information — like names, dates, or little thoughts in the middle of a sentence.
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1. As a boy scout Mark is always prepared
→ “As a boy scout” is an introductory phrase — it tells us *who* we’re talking about before we get to the main part. We need a comma after it.
✔ Corrected: As a boy scout, Mark is always prepared.
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2. We got married on December 10th 1996.
→ When writing a full date (month + day + year), we put a comma between the day and the year.
✔ Corrected: We got married on December 10th, 1996.
*(Note: Some style guides write “December 10, 1996” without “th”, but since the original says “10th”, we’ll keep it and just add the comma.)*
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3. I called his name and he came over to talk.
→ This is two complete sentences joined by “and”. But wait — actually, both parts are short and closely related, so no comma is needed here unless you want to emphasize the pause. In most school-level grammar, this doesn’t require a comma because it’s not joining two long independent clauses with a coordinating conjunction. Let’s check:
“I called his name.” → complete thought
“He came over to talk.” → complete thought
Joined by “and” → usually needs a comma if both sides are long or complex. These are short, so many teachers say no comma needed. BUT — some curriculums teach to always use a comma before “and” when joining two independent clauses. To be safe and follow common school rules, let’s add it.
✔ Corrected: I called his name, and he came over to talk.
*(If your teacher says no comma for short sentences, that’s okay too — but standard rule is to use it.)*
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4. Yikes this trash can really stinks.
→ “Yikes” is an interjection — a sudden exclamation. It should be followed by a comma.
✔ Corrected: Yikes, this trash can really stinks.
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5. “I wonder if anyone can hear me” Jill said.
→ When someone speaks, and you have their words in quotes, then say who said it, you need a comma inside the quotation marks before the closing quote.
✔ Corrected: “I wonder if anyone can hear me,” Jill said.
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6. If possible I will take next week off from work.
→ “If possible” is an introductory phrase — same as #1. Needs a comma after it.
✔ Corrected: If possible, I will take next week off from work.
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7. I studied but I still don’t think I did very well.
→ Again, two independent clauses joined by “but”. Even though they’re short, standard grammar says to use a comma before “but” when connecting two complete thoughts.
✔ Corrected: I studied, but I still don’t think I did very well.
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8. I’ll have a burger fries and a root beer.
→ This is a list of three things: burger, fries, root beer. You need commas between items in a list. Also, many people use a comma before “and” in lists (called the Oxford comma) — and schools often teach to use it.
✔ Corrected: I’ll have a burger, fries, and a root beer.
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9. If everyone is ready let’s go!
→ “If everyone is ready” is an introductory clause — it sets up the condition. Needs a comma before the main part (“let’s go!”).
✔ Corrected: If everyone is ready, let’s go!
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Now let’s collect all the corrected sentences together for the final answer.
Final Answer:
1. As a boy scout, Mark is always prepared.
2. We got married on December 10th, 1996.
3. I called his name, and he came over to talk.
4. Yikes, this trash can really stinks.
5. “I wonder if anyone can hear me,” Jill said.
6. If possible, I will take next week off from work.
7. I studied, but I still don’t think I did very well.
8. I’ll have a burger, fries, and a root beer.
9. If everyone is ready, let’s go!
---
1. As a boy scout Mark is always prepared
→ “As a boy scout” is an introductory phrase — it tells us *who* we’re talking about before we get to the main part. We need a comma after it.
✔ Corrected: As a boy scout, Mark is always prepared.
---
2. We got married on December 10th 1996.
→ When writing a full date (month + day + year), we put a comma between the day and the year.
✔ Corrected: We got married on December 10th, 1996.
*(Note: Some style guides write “December 10, 1996” without “th”, but since the original says “10th”, we’ll keep it and just add the comma.)*
---
3. I called his name and he came over to talk.
→ This is two complete sentences joined by “and”. But wait — actually, both parts are short and closely related, so no comma is needed here unless you want to emphasize the pause. In most school-level grammar, this doesn’t require a comma because it’s not joining two long independent clauses with a coordinating conjunction. Let’s check:
“I called his name.” → complete thought
“He came over to talk.” → complete thought
Joined by “and” → usually needs a comma if both sides are long or complex. These are short, so many teachers say no comma needed. BUT — some curriculums teach to always use a comma before “and” when joining two independent clauses. To be safe and follow common school rules, let’s add it.
✔ Corrected: I called his name, and he came over to talk.
*(If your teacher says no comma for short sentences, that’s okay too — but standard rule is to use it.)*
---
4. Yikes this trash can really stinks.
→ “Yikes” is an interjection — a sudden exclamation. It should be followed by a comma.
✔ Corrected: Yikes, this trash can really stinks.
---
5. “I wonder if anyone can hear me” Jill said.
→ When someone speaks, and you have their words in quotes, then say who said it, you need a comma inside the quotation marks before the closing quote.
✔ Corrected: “I wonder if anyone can hear me,” Jill said.
---
6. If possible I will take next week off from work.
→ “If possible” is an introductory phrase — same as #1. Needs a comma after it.
✔ Corrected: If possible, I will take next week off from work.
---
7. I studied but I still don’t think I did very well.
→ Again, two independent clauses joined by “but”. Even though they’re short, standard grammar says to use a comma before “but” when connecting two complete thoughts.
✔ Corrected: I studied, but I still don’t think I did very well.
---
8. I’ll have a burger fries and a root beer.
→ This is a list of three things: burger, fries, root beer. You need commas between items in a list. Also, many people use a comma before “and” in lists (called the Oxford comma) — and schools often teach to use it.
✔ Corrected: I’ll have a burger, fries, and a root beer.
---
9. If everyone is ready let’s go!
→ “If everyone is ready” is an introductory clause — it sets up the condition. Needs a comma before the main part (“let’s go!”).
✔ Corrected: If everyone is ready, let’s go!
---
Now let’s collect all the corrected sentences together for the final answer.
Final Answer:
1. As a boy scout, Mark is always prepared.
2. We got married on December 10th, 1996.
3. I called his name, and he came over to talk.
4. Yikes, this trash can really stinks.
5. “I wonder if anyone can hear me,” Jill said.
6. If possible, I will take next week off from work.
7. I studied, but I still don’t think I did very well.
8. I’ll have a burger, fries, and a root beer.
9. If everyone is ready, let’s go!
Parent Tip: Review the logic above to help your child master the concept of comma practice worksheet with answers.
