Do you make these common grammatical mistakes?

7/10 tricky.

john duckett, The use of the Oxford is widely accepted as correct. It is not a U.S. thing. Sometimes, it is a matter of clarity.

Jean Fox, Three are used with a quote within a quote, if the inner quote ends the sentence.

Jean Fox, yup. i agree

Pat Wells, in Australia, the correct way to indicate conversation is to use a single inverted comma at each end of the sentence. Almost nobody does, but the rule changed here around 35 years ago. When people tell me I’m wrong, I simply point out that on a standard keyboard, the single inverted comma doesn’t require the use of the shift key, whereas the double inverted commas do. PS: I’m a retired medical typist and grammar Nazi.😊

Jean Fox, Three quotations are used when there is a quote within a quote and the secondary quote ends the sentence. "quote,'speaking quote.'"

Good quiz that took some thought on the part of the writer. Number six should read, ". . .workers' hours." Number seven is a BIG mess. It should read: He recalled that she came in yelling, "Who are you?"

No 7 is wrong. You NEVER use 3 quotation marks!

Number 5 is debatable! Both of the choices are correct!

There is nothing wrong about using the Oxford comma in question #5. In fact, it is often preferable for clarity.

Bobbie Mosimann, It's a quote within a quote.

Bobbie Mosimann, I had issues with that one too

10/10…Some tricky punctuation marks!🎈

7/10. Very tricky, some of the punctuation.

Richard D. Boyle, it specifically is a single quotation mark, followed by a double quotation mark, which appears as a triple quotation mark.