Master the rules of run-on sentences with this engaging grammar worksheet. Practice distinguishing between complete and run-on sentences.

My teacher told me not to take so many classes I wish I would have listened to her.

My dog was upset all day he didn't get canned food for breakfast. 

Commercials that promise amazing results for a fee are most likely scams. 

Because Rose was late for dinner, she had to order from the takeout menu. 

The student fell asleep in class everyone thought this was rude behavior. 

Although a doctor may be able to help me, I have no way to get there. 

I like the history class because the information is explained so well. 

We followed the map we ended up in Canada instead. 

Although the trip to Florida was not very well planned, we had a great time. 

I received an A on my reading test I am happy.

My can was upset all day. Because he did not get canned food for breakfast. 

My cat was upset all day because he did not get canned food for breakfast. 

Because my cat was upset today and did not get canned food for breakfast. 

The student fell asleep in class, and everyone thought this was rude behavior.

The student was falling asleep in class, and although everyone thought this was rude behavior. 

Even though the student fell asleep in class, and everyone thought this was rude behavior. 

Ron was chopping the vegetables, and Ginny was boiling the rice.

When Ron was chopping the vegetables and Ginny was boiling the rice.

Ron was chopping vegetables and while Ginny was boiling the rice. 

Because Peggy is a writing instructor and knows how to write a brilliant essay.

Peggy who is a writing instructor and knows how to write an essay. 

Peggy is a writing instructor. She knows how to write a brilliant essay. 

I prefer walking. So riding the bike hurts.

I prefer walking, for riding the bike hurts.

Since riding the bike hurts my knees and I prefer.

Just as Joann got an A on the very hard science test.

Because the science test was hard and Joann got an A. 

Although the science test was very hard, Joann got an A. 

(1) It was night and my mom and I were out on a group hike. 

(2) The stars glittered in the sky; they were so far away. 

(3) The ground was soft in one spot, so we did not step there. 

(4) The group leader brought a map, she didn’t need it.

Which sentences are NOT run-on sentences?(1) It was night and my mom and I were out on a group hike. (2) The stars glittered in the sky; they were so far away. (3) The ground was soft in one spot, so we did not step there. (4) The group leader brought a map, she didn’t need it. (5) We will visit more national parks, nature trails, and landmarks on vacation.

(2) We are supposed to go shopping, and I am ready to go, but Mom can’t find her shoes! What is the correct way to write sentence 2?

We are supposed to go shopping. I am ready to go, but Mom can’t findher shoes!

We are supposed to go shopping, I am ready to go! But Mom can’t find!

We are supposed to go shopping. I am ready to go! But can’t find her shoes!

(3) The shop is filled with items I am careful not to break anything. What is the correct way to write sentence 3?

The shop is filled with items, I am careful not to break anything.

The shop is filled with items, but I am careful not to break anything.

The shop is filled with items because I am careful not to break anything.

Run-On Sentences Quiz 

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