Intended for use by students at any level above grade 4, this practice book sharpens students' knowledge of basic grammar skills. The book emphasizes combining and expanding sentences as well as checking written sentences for correct use of various parts of speech. The book includes a section on capitalization and punctuation. The book is self-paced so that students may use it independently, and answers are provided for exercises so that students can check on their own work. Readability of the book has been carefully controlled for younger students, but the approach and design of the book make it useful for older students or students who speak English as a second language. (RS)