“[A]sk not what your country can do for you—ask what you can do for your country.”
Answer:
When writing a restrictive clause, introduce it with the word "that" and no comma. However, if the subject is or was a human being, use "who" to introduce the clause. When talking about people in defining (restrictive) relative clauses, who is preferred to that.
Answer: The subject: Cora
The verb: saved
Complete thought: the money
Explanation:
It means, for example if I say, "I go to the park every now and then", then it isn't a common event, but happens often enough not to be classified as a rarity.
