Final answer:
Yes, the given sentence is a run-on/fused sentence. A run-on sentence occurs when two independent clauses are incorrectly joined together without any proper punctuation or conjunction. To correct this run-on sentence, you can add a coordinating conjunction such as 'and' or 'but,' or you can separate the clauses into two separate sentences.
Step-by-step explanation:
Yes, the given sentence is a run-on/fused sentence.
A run-on sentence occurs when two independent clauses are incorrectly joined together without any proper punctuation or conjunction. In this case, the two independent clauses 'Clara is taking four classes this semester' and 'she is also working at McDonald's' are connected without any punctuation or conjunction. To correct this run-on sentence, you can add a coordinating conjunction such as 'and' or 'but,' or you can separate the clauses into two separate sentences.
Example of corrected sentence: 'Clara is taking four classes this semester and she is also working at McDonald's.'
Learn more about Run-on sentences