Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Commas With Nonessential Elements Exercise 3
This Purdue University OWL (Online Writing Lab) provides practice with placing commas in sentences that have nonessential elements in them.
Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Commas After Introductions Exercise 2
This Purdue University OWL (Online Writing Lab) provides practice with adding commas to introductory phrases in sentences.