Grammar practice worksheet from Quizizz with questions on sentence structure and punctuation.

Let’s go through each question one by one and fix or choose the right answer.

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Question 1:
Original sentence: *Because the sea turtle swam away from the trash it was safe.*

This is a complex sentence starting with “Because” — that means we need a comma after the dependent clause (“Because the sea turtle swam away from the trash”) before the main clause (“it was safe”).

✔ Correct version: Because the sea turtle swam away from the trash, it was safe.

→ That matches option A.

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Question 2:
Make a compound sentence from:
- Turtles are endangered species.
- Turtles are threatened by humans.

A compound sentence joins two independent clauses with a comma + coordinating conjunction (like “and”, “but”, “or”).

Option A: *Turtles are endangered species, and they are threatened by humans.* → This works! Both parts can stand alone as sentences, and “and” connects them properly.

Option B uses “but” — which implies contrast, but there’s no real contrast here.

Option C drops “species” — changes meaning slightly.

Option D uses “or” — doesn’t make sense logically.

✔ Best choice: A

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Question 3:
Original: *When turtles encounter trash in the ocean they sometimes think it is food.*

Again, this starts with “When...” — so it’s a dependent clause followed by an independent clause. We need a comma after the “when” clause.

✔ Correct: *When turtles encounter trash in the ocean, they sometimes think it is food.*

→ That’s option A.

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Question 4:
Sentence: *The majestic sea turtle.*

What’s wrong? It has a subject (“the majestic sea turtle”) but NO verb. So it’s not a complete sentence — it’s a fragment.

Option B says: *It is a fragment because it is only the subject.* → That’s correct!

Option A: Doesn’t need a comma — irrelevant.

Option C: Not a compound sentence — false.

Option D: Says it’s only the verb — nope, it’s only the subject.

✔ Answer: B

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Question 5:
Fix this run-on:
*The turtle swam really fast and it went past the reef and then it went on the beach and laid its eggs.*

This is a long string of actions joined by “and” — it’s a run-on. We should break it into shorter sentences or use commas/conjunctions better.

Option B: *The turtle swam really fast. It went past the reef, and then it went on the beach* — wait, it cuts off! But looking at the image, option B probably continues… actually, in your image, option B seems incomplete. Let me check again.

Wait — in your image, option B says:

> The turtle swam really fast. It went past the reef, and then it went on the beach

But the original sentence ends with “laid its eggs.” So if option B stops there, it’s missing part of the meaning.

Actually, let’s look again — maybe you copied it wrong? In standard tests, option B would likely be:

> The turtle swam really fast. It went past the reef, and then it went on the beach and laid its eggs.

That would be correct — breaking the first action into its own sentence, then combining the rest with a comma + “and”.

Option A says “It is fine as it is” — no, it’s a run-on.

So assuming option B is meant to include the full idea (even if cut off in your text), it’s still the best fix.

✔ Answer: B

*(Note: If option B truly ends at “beach”, then it’s incomplete — but based on typical test design, we assume it’s meant to be the full corrected version.)*

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Final Answers:

1. A
2. A
3. A
4. B
5. B