Question

Read the sentence.

We’re not sure if the tickets are for the preview night, the opening night, this weekend or next week.

Which best describes the punctuation error in the sentence?

Both commas should be deleted.
There should be a colon after “for.”
The commas should be replaced by semicolons.
There should be a comma after “weekend.”

Answer 1

There should be a comma after “weekend.”

Explanation: it's a list of four items, so add the serial (Oxford) comma: "...this weekend, or next week."