This has been developed to prepare students for standardized testing over the Common Core Standards in English (grammar and writing) for fifth grade specifically. The passage comes from released items from California Standards Test (2008). There are 20 questions related to grammar and editing. In addition, there is a writing prompt at the end set up in 3 parts.
Part A - short answer
Part B - paragraph
Part C - narrative response
You are not paying for the passages, but rather the time and effort it took to create questions, label them with standards, and compile and edit the document for student use.