In terms of literature, the paston letters are important mostly because
a. they illustrate how the english language has changed over time.
b. they indicate just how crucial correct spelling is to proper speech.
c. they show how inferior 15th-century england was compared to modern life.
d. they prepare future generations for similar difficult conditions.

#1  sara was always tasked with selecting birthday presents for her friends and family because everyone admired her  impeccable taste. 

impeccable (adj): perfect, flawless

#2  they moved to the united states many years ago, but their  insular  attitudes made it difficult for them to socialize. 

insular (adj): isolated; separate

#3  the professor explained the  semantic  relationship between the two nouns used in the sentence. 

semantic (adj): related to words or the meanings of words 

happy to : )