We had hoped they had sent us an invitation too.
Answer:
Definitely formal English as formal English is used in formal settings. Both the examples you gave are formal settings.
<span>The figurative device that Swift use in his essay was </span><span>hyperbole. He used hyperbole because of the expression that is just exaggerated. The meaning of hyperbole is that it is used in the sentence to emphasize or exaggerate the thought of the sentence.</span>
<span>William Faulkner's speech at the Nobel Banquet at the City Hall in Stockholm, December 10, 1950 * ... Because of this, the young man or woman writing today has forgotten the ... It is easy enough to saythat man is immortal simply because he will endure: that ... The poet's, the writer's, duty is to write about these things.</span><span>
</span>
I don’t know I would look it up