Is there a sentence fragment?
When it comes to seafood, Americans aren't always eating what they think they are. According to an FDA report based on DNA analysis of fish that are frequently misidentified.
no yes
A sentence is a group of words that expresses a complete thought.
The band I'm in has been rehearsing daily because we have a concert in two weeks.
A sentence fragment is a group of words that does not express a complete thought.
Rehearsing daily because we have a concert in two weeks.
This fragment is missing a subject. It doesn't tell who is rehearsing.
The band I'm in.
This fragment is missing a verb. It doesn't tell what the band I'm in is doing.
Because we have a concert in two weeks.
This fragment is missing an independent clause. It doesn't tell what happened because of the concert.
There is a sentence fragment that does not express a complete thought.
When it comes to seafood, Americans aren't always eating what they think they are. According to an FDA report based on DNA analysis of fish that are frequently misidentified.
Here is one way to fix the sentence fragment:
When it comes to seafood, Americans aren't always eating what they think they are. According to an FDA report based on DNA analysis, an average of fifteen percent of fish are misidentified.