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Simple or Compound? is a free printable Grade 3 English worksheet on telling one complete thought from two joined ones, aligned to Common Core standard L.3.1. It prints 3 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 4 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Simple or Compound?

L.3.1

NameDate

Sort each sentence into the right column.

1.Sort each one: Simple sentence or Compound sentence?

Sort: The sun came out, so we went to the park., The path was icy, but nobody fell., A fox ran across the road., Our teacher read us a story., We ate lunch under the tree., We could bake a cake, or we could make pancakes.

Simple sentenceCompound sentence
2.Sort each one: Simple sentence or Compound sentence?

Sort: The moon rose over the hill., Mia found a shell, and she gave it to me., The store was closed, so we went home., The bread rose in the oven., Leo likes apples, but his brother likes pears., The puppy chewed my sock.

Simple sentenceCompound sentence
3.Sort each one: Simple sentence or Compound sentence?

Sort: It was cold, so we wore our hats., The baby fell asleep., A bird built a nest in the hedge., The dog barked, and the cat ran away., I wanted to go out, but it was raining., Grandpa fixed the old clock.

Simple sentenceCompound sentence

LessonPrint · L.3.1 · Set 4 · free to copy for classroom use

Answer key — Simple or Compound?

Set 4. Prints on its own sheet.

  1. 1.1. A fox ran across the road. — Simple sentence 2. Our teacher read us a story. — Simple sentence 3. The path was icy, but nobody fell. — Compound sentence 4. The sun came out, so we went to the park. — Compound sentence 5. We ate lunch under the tree. — Simple sentence 6. We could bake a cake, or we could make pancakes. — Compound sentence
  2. 2.1. Leo likes apples, but his brother likes pears. — Compound sentence 2. Mia found a shell, and she gave it to me. — Compound sentence 3. The bread rose in the oven. — Simple sentence 4. The moon rose over the hill. — Simple sentence 5. The puppy chewed my sock. — Simple sentence 6. The store was closed, so we went home. — Compound sentence
  3. 3.1. A bird built a nest in the hedge. — Simple sentence 2. Grandpa fixed the old clock. — Simple sentence 3. I wanted to go out, but it was raining. — Compound sentence 4. It was cold, so we wore our hats. — Compound sentence 5. The baby fell asleep. — Simple sentence 6. The dog barked, and the cat ran away. — Compound sentence

Last reviewed 2026-09-05. Aligned to L.3.1 of the Common Core State Standards for English Language Arts.