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L.4.2.c

Use a comma before a coordinating conjunction in a compound sentence

10 sentences · from Commas in compound sentences

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When and, but or so joins two sentences, put a comma before it.

  1. Example 1Add the missing comma.

    The dogs were muddy so Dad washed them.

    The dogs were muddy, so Dad washed them.

1 / 10 F09Add the missing comma.

Dad chopped wood so he was tired.

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L.4.2.c · Commas in compound sentences

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Example · Add the missing comma.The dogs were muddy so Dad washed them.The dogs were muddy, so Dad washed them.

Add the missing comma.

  1. Dad chopped wood so he was tired.
  2. Grandma baked a pie so it was hot.
  3. Grandma baked pies so the kitchen was warm.
  4. The cows were hungry so they ate grass.
  5. The monkeys were hungry so they ate bananas.
  6. The peach is ripe so Mom buys it.
  7. Mom made toast and Grandma made a cake.
  8. The car is dirty so Dad washes it.
  9. The tub is empty so Dad fills it.
  10. Grandpa planted peas and the gardener planted seeds.
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L.4.2.c · Commas in compound sentences · answer key

  1. Dad chopped wood, so he was tired.
  2. Grandma baked a pie, so it was hot.
  3. Grandma baked pies, so the kitchen was warm.
  4. The cows were hungry, so they ate grass.
  5. The monkeys were hungry, so they ate bananas.
  6. The peach is ripe, so Mom buys it.
  7. Mom made toast, and Grandma made a cake.
  8. The car is dirty, so Dad washes it.
  9. The tub is empty, so Dad fills it.
  10. Grandpa planted peas, and the gardener planted seeds.
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