Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none.
richard watterson thought his grammar test was today and stayed up late to study. the exam however is not for another week.

Explanation:

To fix the punctuation, we need to add a semicolon or a period after "study" (but a semicolon is better for the related ideas) and commas around "however" as it's a conjunctive adverb. The correct sentence should be: "Richard Watterson thought his grammar test was today and stayed up late to study; the exam, however, is not for another week." Wait, actually, the main error is the placement of "however". "However" is a conjunctive adverb and should be set off by commas when used in the middle of a sentence, and also, the two independent clauses ("Richard...study" and "The exam...week") should be separated by a semicolon or a period. But looking at the original, the second sentence starts with "The exam however...", so we need to add commas around "however": "The exam, however, is not for another week." Also, the first part is a complete sentence, the second is another. Wait, actually, the correct fix is: "Richard Watterson thought his grammar test was today and stayed up late to study. The exam, however, is not for another week." So we add commas before and after "however" in the second sentence.

Answer:

Richard Watterson thought his grammar test was today and stayed up late to study. The exam, however, is not for another week.