English Club
English Club: Sentence Variety
This EnglishClub tutorial discusses the importance of using sentence variety in the context of paragraphs. The tutorial provides information about sentence types, sentence patterns, and sentence lengths.
University of Calgary
Univ. Of Calgary: Sentence Elements: Phrase Functions
This section of an online grammar guide provides information on how different types of phrases can function in a sentence. It also offers an interactive exercise for identifying phrase functions.