: The book is best known for its "drilling" method—repeating similar structures until the grammar becomes automatic.

: All 16 active voice tenses and the passive voice.

: Since keys are available separately, it is an excellent resource for independent learners to verify their progress.

: The exercises are organized by topic, including: Articles and Nouns : Basic usage and plural forms. Pronouns : Much/many, some/any/no, and their derivatives.