Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Comma vs. Semicolon: Compound Sentences
A handout with forty sentences for practicing comma and semicolon usage in compound sentences; answer key provided.
Vancouver Island University
Malaspina: Punctuating Between Main Clauses
Four printable exercises in which punctuation errors need to be corrected. 2.1 requires correction of compound sentences by putting in commas or semicolons where needed and getting rid of comma splices. 2.2 requires comma splice...
Other
Tidewater Community College Writing Center: Practical Punctuation Guide
This site contains practical and useful information about the following: commas, semicolons, colons, dashes, parentheses and brackets, ellipsis points, quotation marks, and apostrophes. CCSS.ELA-Literacy.CCRA.L.2