This document contains a grammar worksheet in Chinese with fill-in-the-blank and circling exercises. Students are asked to identify third person singular nouns, underline verbs and add "s" for third person singular subjects. They also identify subjects, underline verbs and use a wavy line under "do" and "does", adding or not adding "s" to verbs after those auxiliary verbs. The worksheet tests identifying grammatical subjects and verbs and applying subject-verb agreement rules.