Final answer:
The sentence "Sue just started her job, and likes it" is not a run-on sentence but it is grammatically incorrect because it is missing a subject in the second clause. It could be corrected by stating "Sue just started her job, and she likes it." Understanding the proper structure of sentences helps in avoiding run-ons and ensuring clear communication.
Step-by-step explanation:
The question posed is whether the sentence "Sue just started her job, and likes it" is a sentence or a run-on. This sentence is not a run-on; it's an example of a correct sentence. The clause "Sue just started her job" is an independent clause because it has a subject (Sue) and a verb (started) and can stand alone as a complete thought. The clause "likes it" is a dependent clause that cannot stand alone as a complete thought and needs the independent clause to make sense. However, the sentence is lacking a subject in the second clause, making the sentence feel incomplete. The sentence could be improved by stating "Sue just started her job, and she likes it," adding the subject 'she' to clarify who 'likes it.'
To avoid a run-on sentence, clauses should be properly connected or separated by appropriate punctuation. Run-on sentences typically contain two or more independent clauses that are not correctly separated by punctuation or coordinating conjunctions. In the sentence given, there is an attempt to connect two clauses using a coordinating conjunction 'and,' but the omission of the subject in the second clause makes it technically incorrect rather than a run-on.
Correcting sentences and avoiding run-ons are essential for clear communication. When editing for more effective sentences, considering context and the intended effect of the sentence is crucial. Run-on sentences can sometimes occur when multiple independent clauses are joined without adequate punctuation or coordinating conjunctions, which is not the case here.