Which of these sentences is a run-on sentence? A. Give me your shirt; I'll iron it. B. Give me your shirt. I'll iron it. C. Give me your shirt I'll iron it. D. Give me your shirt, and I'll iron it. E. Give me your shirt. I'll iron it for you.

Your answer would be C.

Explanation:

C is a run-on sentence. A run-on sentence occurs when two or more independent clauses are not joined correctly. An independent clause is a group of words that can stand alone as a sentence, as in give your shirt.

There are two types of run-on sentences: fused sentences and comma splices. The first ones occur when independent clauses run together with no punctuation marks or coordinating conjunctions to separate them, just as C shows. On the other hand, comma splices occur when two or more independent clauses are joined only by a comma. As it has been said, C is a fused sentence. You can fix this by adding a comma and a coordinating conjunction (D), by adding a semicolon to separate the independent clauses (A), or by separating the independent clauses into sentences (E).

A sentence that is a run-on would be;

C. Give me your shirt I'll iron it.

Now this may look incorrect, but remember that a run-on sentence is a two complete sentence incorrectly combined.

Example: Amy walks to school Eddie drives his car.

Ask yourself, is this a complete idea? No! This is TWO complete ideas. A part of a sentence that can be a sentence by itself is called an independent clause. This example has TWO independent clauses.