In the second sentence, the adjective is delighted. In the third sentence, the adjective is large. The first sentence doesn't contain an adjective.
In the summer of 1793 is
the group that contains the adverb phrases in the sentence.
To add, <span>an </span>adverb phrase<span> <span>consists of one or more words. The </span></span>adverb<span> <span>is the head of the </span></span>phrase<span> <span>and can appear alone or it can be modified by
other words.<span> </span></span></span>
In the book/movie Fahrenheit 451 you will see that the firemen don't put out fires;they burn books.
451 degrees Fahrenheit is the flash point of paper.