Commas in Compound Sentences is a free printable Grade 4 English worksheet on the comma before and, but and so in a compound sentence, aligned to Common Core standard L.4.2. It prints 7 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 13 of 25 · the same problems every time you open this link.

One paper per student

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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

Commas in Compound Sentences

L.4.2

NameDate

Rewrite each sentence correctly.

1.commas

The wind blew hard and the old tree fell over.

2.commas

We could walk to the park or we could take the bus.

3.commas

The road was icy but the bus still arrived on time.

4.commas

It was getting dark so we lit the fire.

5.commas

Lichens absorb what is in the air so they vanish where it is dirty.

6.commas

Harrison built four clocks and the fourth one worked.

7.commas

The bell rang and the children ran outside.

LessonPrint · L.4.2 · Set 13 · free to copy for classroom use

Answer key — Commas in Compound Sentences

Set 13. Prints on its own sheet.

1.The wind blew hard, and the old tree fell over.
2.We could walk to the park, or we could take the bus.
3.The road was icy, but the bus still arrived on time.
4.It was getting dark, so we lit the fire.
5.Lichens absorb what is in the air, so they vanish where it is dirty.
6.Harrison built four clocks, and the fourth one worked.
7.The bell rang, and the children ran outside.

Last reviewed 2026-09-05. Aligned to L.4.2 of the Common Core State Standards for English Language Arts.