Definite-personal, indefinite-personal, impersonal, and nominative sentences.
If you are looking for specific exercise help, the 2001 edition is structured as follows: gdz 8 klass russkii iazyk barkhudarov 2001 goda
Homogeneous members, isolated constructions (participial and adverbial phrases), and introductory words. Tips for Verification isolated constructions (participial and adverbial phrases)