This short grammar quiz can be used as a diagnostic activity to assess studentsÃ¢ï¿½ï¿½ knowledge of concepts such as sentence fragments, run-on sentences, subject vs. object pronouns (e.g., "who" vs. "whom"; "I" vs. "me"), commonly misspelled words (e.g., "its"/"it's") and more. It can also be used to practice or assess these skills during or after students have studied them. It consists of ten sentences, four of which are correct and six of which contain a grammatical error. Students identify the sentence as correct or incorrect and make necessary revisions. An annotated answer key is provided with suggested corrections and extensive explanations of the grammar points for all the sentences, including the correct statements. Alternatively, this list of sentences easily could be used for a class game that required 10 prompts. I have used worksheets such as this to play tic-tac-toe and wagering games wherein the teams bet on each sentenceÃ¢ï¿½ï¿½how certain they are it is correct/incorrect and what the correct revision should be. However you choose to use it, this worksheet works students' knowledge of English grammar, asking them to identify correct usage and as well as to produce it. The preview document is a pdf with three sample questions and annotated answers. The original quiz comes in a zipped file with both a pdf copy and a Microsoft Word copy so you can edit the quiz if you wish. The fonts are standard, so there should be no issues with compatibility. However, the pdf copy is considered the master, and the Word copy is provided simply for convenience. I cannot guarantee that all formatting will transfer exactly as it is on the pdf.