

This Grade 5 worksheet helps students identify and correct run-on sentences—a common grammar error where two or more complete thoughts are joined without proper punctuation or connecting words. Students will learn to fix run-ons using periods, commas with conjunctions (and, but, so, because), or by splitting sentences. Task types include identifying correct vs. incorrect sentences, multiple-choice questions (MCQs), sentence rewriting, fill-in-the-blanks with conjunctions/punctuation, and paragraph writing. The worksheet builds editing skills and improves sentence fluency in both writing and speaking.
Run-on sentences confuse readers and make writing hard to follow. For Grade 5 learners, this topic is important because:
1. Run-ons hide the natural pause between two complete ideas.
2. Fixing run-ons teaches students how to use periods, commas, and conjunctions correctly.
3. Short, clear sentences improve reading comprehension and writing grades.
4. Mastering sentence boundaries prepares students for essay writing and exams.
This worksheet includes five targeted activities to help students recognize and fix run-on sentences step by step:
🧠 Exercise 1 – Identify the Run-Ons
Students read 10 sentences and underline the ones that are run-ons (missing punctuation or conjunctions between two complete thoughts).
✅ Exercise 2 – Multiple Choice Questions (MCQs)
Students choose the correct way to fix each run-on sentence from three options.
✍️ Exercise 3 – Sentence Rewriting
Students rewrite 10 run-on sentences correctly using periods, commas, or conjunctions like and, but, so, because.
📝 Exercise 4 – Fill in the Blanks
Students complete a short narrative paragraph by choosing the correct conjunction (so, but, and, because) or punctuation to fix run-ons.
🎨 Exercise 5 – Paragraph Writing
Students write a short paragraph about their morning routine using correct punctuation and no run-ons. (Answers vary)
Exercise 1 – Underline the Run-On Sentences
(These sentences are run-ons and should be underlined; the others are correct)
Underline these:
1. I went to the market I bought mangoes. (run-on)
3. He likes cricket he plays daily. (run-on)
4. The sun set we went home. (run-on)
6. He studied hard he passed the exam. (run-on)
7. They arrived late so the show started. (run-on)
8. The bell rang the students left. (run-on)
10. The rain stopped we went outside. (run-on)
Correct sentences (do not underline):
2. She sings and dances well. (correct)
5. She opened the door and saw a friend. (correct)
9. She cooked dinner and I set the table. (correct)
Exercise 2 – Multiple Choice Questions (MCQs)
1. b) The dog barked so the cat hid.
2. c) I love pizza because it is tasty.
3. b) She wore a red dress and it looked nice.
4. a) He forgot his lunch so he was sad.
5. c) The event started late so we were annoyed.
6. c) They played well so they won easily.
7. a) The bus arrived so we boarded quickly.
8. c) I have a test tomorrow and I must study.
9. b) She was ill so she stayed home.
10. a) The teacher entered and the class sat down.
Exercise 3 – Sentence Rewriting (Corrected versions)
1. The baby cried, so the mother came.
2. I like tea, and I drink it every morning.
3. The traffic was heavy, so we reached late.
4. She saved money, and she bought a new bag.
5. The phone rang, so he answered it.
6. I lost my keys, so I could not open the door.
7. The flowers need water, or they will die.
8. He woke up late, so he missed breakfast.
9. The room was dark, so she turned on the light.
10. You must study hard, or you will fail.
Exercise 4 – Fill in the Blanks (Paragraph)
Ravi woke up late **so** he missed the school bus. He decided to walk **but** the school was far away. He walked fast **and** he reached just in time. His friend said, "You are lucky" **and** Ravi smiled. Ravi promised **that** he will wake up early tomorrow. He set his alarm for 5 am **but** he forgot to turn it on. He woke up again at 6 am **and** he ran to get ready. His mother gave him a biscuit **and** he ate it quickly. He reached school on time **so** his teacher was happy. Ravi learned **that** waking up early is important.
Exercise 5 – Paragraph Writing
Answers may vary. Encourage students to write 4–6 sentences about their morning routine without run-ons. Example: “I wake up at 6 am. I brush my teeth and wash my face. Then I eat breakfast. I pack my bag and leave for school. I reach school by 7:30 am.”
Help your child write clear, confident sentences with a Free 1:1 Grammar Editing Trial Class at PlanetSpark.
It is a sentence where two ideas are joined without proper punctuation or conjunctions.
They may not know where to break sentences or use linking words properly.
By adding punctuation or conjunctions to separate ideas clearly.