What is the narrator's “first mistake” (p. 165)? What words and phrases clarify the meaning of
the phrase “cardinal rules" in this paragraph (p.
165)?

the answer is both an appeal to ethos and logos (if that's what your question options were)

he believed if we do not fight back the britins would be in every household

the answer is a.

~

hope this !

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)