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Complete Sentences, Fragments, and Run-Ons - Printable English Worksheets - Wayground

Complete Sentences, Fragments, and Run-Ons

16 questions

4th - 4th Grade

English

Complete Sentences, Fragments, and Run-Ons is a Grade 4 English worksheet that helps students distinguish among complete sentences, fragments, and run-on sentences. Across 16 multiple-choice questions, students classify examples, identify whether a sentence has a subject and predicate, and explain what the subject and predicate tell about a sentence. The worksheet also asks students to recognize fragments and run-ons within answer choices and true-or-false statements. This free printable worksheet supports instruction and review of sentence structure through varied identification questions rather than sentence rewriting. It is useful for independent practice, small-group instruction, homework, or a quick formative assessment of students’ ability to identify complete thoughts and sentence parts. The worksheet includes a complete answer key so teachers can check understanding efficiently and address errors in class.

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Complete Sentences, Fragments, and Run-Ons

Total questions: 16

Name
Class
Date
1.

Enjoys working out at the gym.

a)

fragment

b)

run-on

c)

complete sentence

2.

What time is it?

a)

fragment

b)

run-on

c)

complete sentence

3.

The smell of buttery popcorn.

a)

fragment

b)

run-on

c)

complete sentence

4.
A complete sentence has _________.
a)
Only a subject
b)
Only a period
c)
Only a predicate
d)
A subject and a predicate
5.
This is an example of a __________.
The dark horse jumped over the old fence.
a)
conjunction
b)
fragment
c)
complete sentence
d)
run-on sentence
6.
This is an example of a __________.
The huge Bengal tiger.
a)
Fragment
b)
Complete Sentence
c)
Run-On
d)
Conjunction
7.
This is an example of a __________.
The dog ran with the red ball in his mouth he was very happy he wanted to keep playing.
a)
Run-On
b)
Complete Sentence
c)
Fragment
d)
Prepositional Phrase
8.
The subject of a sentence tells ________.
a)
Prepositions
b)
Why and how something happens.
c)
When and where something happens.
d)
Who or what the sentence is about.
9.
The predicate of a sentence tells _______.
a)
predictions 
b)
what the subject is or does.
c)
prepositional phrases
d)
who or what the sentence is about
10.
This is a complete sentence:
I know how to write complete sentences.
a)
True
b)
False
11.

My brother loves sports he plays all the time.

a)

Complete

b)

Fragment

c)

Run-On

12.

Which of these sentences is a run-on?

a)

He interviewed the mayor and did other research.

b)

He wants to enter the report in a national contest.

c)

I read his report it was interesting and well-written.

d)

One of the boys did a report about our town's history.

13.

Which of these sentences is a fragment?

a)

You will feel useful.

b)

The best feeling in the world.

c)

Hard work can be rewarding.

d)

People of all ages can make a difference.

14.

Which of these sentences is a fragment?

a)

You can hold a bake sale.

b)

Many groups need your help.

c)

Or a car wash at a busy location.

d)

Choose your favorite cause to work for.

15.

Which of these sentences is a run-on?

a)

I like traveling and seeing new places.

b)

I always take lots of pictures to show my friends.

c)

There are so many different ways to share photos.

d)

You can even make them into a book my aunt did that.

16.

What is missing in this sentence. Relaxing on the beach.

a)

predicate (the what)

b)

subject (the who)

c)

both

d)

nothing

Answer Key

Complete Sentences, Fragments, and Run-Ons

Total questions: 16

1.
a)

fragment

2.
c)

complete sentence

3.
a)

fragment

4.
d) A subject and a predicate
5.
c) complete sentence
6.
a) Fragment
7.
a) Run-On
8.
d) Who or what the sentence is about.
9.
b) what the subject is or does.
10.
a) True
11.
c)

Run-On

12.
c)

I read his report it was interesting and well-written.

13.
b)

The best feeling in the world.

14.
c)

Or a car wash at a busy location.

15.
d)

You can even make them into a book my aunt did that.

16.
b)

subject (the who)

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FAQs

What does the Complete Sentences, Fragments, and Run-Ons worksheet cover?

This Grade 4 English worksheet uses 16 multiple-choice questions to help students classify sentences as complete sentences, fragments, or run-ons. Students also identify the subject and predicate, recognize that a complete sentence contains both, and apply these ideas to short sentence examples and answer-choice sets.

How can I use this worksheet to teach complete sentences, fragments, and run-ons?

Begin by reviewing that a complete sentence has a subject and predicate, then discuss how the subject identifies who or what the sentence is about and how the predicate tells what the subject is or does. Have students explain their choices for examples such as “The huge Bengal tiger” and “My brother loves sports he plays all the time,” using the worksheet’s multiple-choice format as guided practice before assigning it independently.

What mistakes should I watch for when students complete this worksheet?

Students may label a short fragment such as “The smell of buttery popcorn” as complete because it begins with a capital letter and ends with a period. They may also overlook that examples such as “The dog ran with the red ball in his mouth he was very happy he wanted to keep playing” contain improperly joined thoughts, making them run-ons, or confuse the subject with what the subject does.

How do I assign and grade this worksheet?

This worksheet is available as a printable PDF and as a digital quiz on Wayground, so you can use the 16 multiple-choice items for paper-based or online practice. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app.

How can I differentiate this sentence-structure worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or font size to make the sentence examples and answer choices easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language when appropriate for your learners.

Where can I find more worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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