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Complete Sentences
Grade 2 - Grammar - Building Confidence
Worksheet 1
1Which choice is a complete sentence with a whole thought?
2Which group of words is a fragment, not a complete sentence?
3Fix this fragment by adding a subject: "watered the tomato plants."
4Fix this fragment by adding a predicate: "A red kite."
5Which sentence is complete and correctly ended?
6Which choice is a complete sentence with a whole thought?
7Which group of words is a fragment, not a complete sentence?
8Fix this fragment by adding a subject: "ticked softly."
9Fix this fragment by adding a predicate: "The young gardener."
10Which sentence is complete and correctly ended?
About this worksheet
A complete sentence must express a whole thought. That means it needs a subject, a predicate, capitalization, and an end mark that helps the reader know where the thought stops. Second graders often write fragments because they know what they meant, even when the reader cannot tell who did the action or what happened. This grammar worksheet focuses on recognizing completeness rather than writing long answers. Students choose complete sentences, identify fragments, and select revisions that add the missing part. The examples are short, but each one is a full sentence or a clear fragment for students to judge. Encourage your child to ask two questions: who or what is this about, and what does it say? Both answers must be present.
What your child will learn
Recognize complete sentences
Tell fragments from complete thoughts
Add a missing subject or predicate
Check capitalization and end marks
Worked example
'Ran across the field' is a fragment because it does not tell who ran. 'The dog ran across the field' is complete.
Common mistake
Thinking a group of words is complete because it begins with a capital letter.
Helpful hint
A complete sentence tells who or what and what happened.
Worksheet 1