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Fix Fragments and Run-Ons
Grade 4 - Grammar - Building Confidence
Worksheet 1
1Which revision fixes this fragment: "Because the bridge bent."
2Which revision fixes this run-on: "The bridge bent the team added supports."
3Which group of words is a fragment?
4Why is "After the rain stopped, Luis checked the riverbank." complete?
5In the complete sentence "Because the bridge bent, the team added supports.", which words are the predicate?
6Which revision fixes this fragment: "The student with the missing notebook."
7Which revision fixes this run-on: "Orion appeared Kenji drew it in his notebook."
8Which group of words is a fragment?
9Why is "Because the bridge bent, the team added supports." complete?
10In the complete sentence "The student with the missing notebook searched the library cart.", which words are the predicate?
About this worksheet
Complete sentences help readers follow who or what is doing something and where one thought ends before another begins matters in fourth grade because students are writing longer paragraphs and need sentence choices that guide a reader without confusion. Fourth graders may write a long fragment that sounds important but lacks a complete thought, or they may push two complete thoughts together without punctuation. This worksheet keeps the work inside meaningful sentences rather than isolated labels. Students identify fragments and run-ons, choose complete revisions, find subjects and predicates, and join related ideas with punctuation or conjunctions. The items rotate across identifying the feature, choosing the correct revision, explaining how the word or mark works, and rejecting common distractors. Support versions use familiar school contexts and short sentences. Standard and challenge versions add closer choices, more varied wording, and sentences where one nearby word can tempt a careless answer. Ask your child to read the whole sentence aloud before choosing. Then have them name the rule that made the answer work, because grammar becomes useful when it improves real writing.
What your child will learn
Tell a complete sentence from a fragment
Fix fragments by adding missing information
Fix run-ons with punctuation or joining words
Find subjects and predicates in complete sentences
Worked example
'Because the bridge bent' is a fragment until it is completed as 'Because the bridge bent, the team added supports.'
Common mistake
Thinking a group of words is complete just because it is long.
Helpful hint
Check for a complete thought, not just a capital letter and end mark.
Worksheet 1