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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 9 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: Leo likes apples, but his brother likes pears., The train left the station., The bread rose, and Dad sliced it., A bird built a nest in the hedge., We could bake a cake, or we could make pancakes., The bread rose in the oven.

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

Sort: You can draw a picture, or you can write a poem., A fox ran across the road., Grandpa fixed the old clock., The baby fell asleep., The bell rang, and the children lined up., The path was icy, but nobody fell.

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

Sort: My sister plays the violin., Mia found a shell, and she gave it to me., Our teacher read us a story., I wanted to go out, but it was raining., The store was closed, so we went home., Rain dripped from the roof.

Simple sentenceCompound sentence

LessonPrint · L.3.1 · Set 9 · free to copy for classroom use

Answer key — Simple or Compound?

Set 9. Prints on its own sheet.

  1. 1.1. A bird built a nest in the hedge. — Simple sentence 2. Leo likes apples, but his brother likes pears. — Compound sentence 3. The bread rose in the oven. — Simple sentence 4. The bread rose, and Dad sliced it. — Compound sentence 5. The train left the station. — Simple sentence 6. We could bake a cake, or we could make pancakes. — Compound sentence
  2. 2.1. A fox ran across the road. — Simple sentence 2. Grandpa fixed the old clock. — Simple sentence 3. The baby fell asleep. — Simple sentence 4. The bell rang, and the children lined up. — Compound sentence 5. The path was icy, but nobody fell. — Compound sentence 6. You can draw a picture, or you can write a poem. — Compound sentence
  3. 3.1. I wanted to go out, but it was raining. — Compound sentence 2. Mia found a shell, and she gave it to me. — Compound sentence 3. My sister plays the violin. — Simple sentence 4. Our teacher read us a story. — Simple sentence 5. Rain dripped from the roof. — Simple sentence 6. The store was closed, so we went home. — Compound sentence

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