Grade 5 hard sheet 4 challenges students to spot and correct mixed spelling errors in tricky words like believe, schedule, separate, and necessary. Through four multiple-choice items and five fill-in-the-blank sentences, Grade 5 spellers compare close-but-wrong options and pick the correct version. This worksheet sharpens proofreading skills and helps students remember rule-breakers and commonly misspelled words that show up across Grade 5 writing tasks.