Punctuate the following sentences using the first three comma rules:

When the large earthquake shook Seattle Nancy decided to move back to Winnipeg.

No I$\text{'}$m not ready to take the offer.

Guy is majoring in Adult Education isn't that right?

Punctuate the following sentences using the last three comma rules:

College students of course need the fundamentals of grammar.

Grammar alone which can be rather tedious does not make a person a good writer.

One doesn't know anything clearly S$.$I. Hayakawa said unless one can state it in writing.