Question

1. in the next chorus, please try to sing in (unison, compliance).
2. we will never have a well - organized or effective club if all the members insist on having their own way (willfully, prodigiously).
3. as i stared at the luscious chocolate swirl cake, i bravely (incapacitated, grappled) with temptation—but the chocolate cake won!
4. can you imagine what a (relevant, prodigious) amount of research is necessary to produce a multivolume reference book such as the encyclopaedia britannica?
5. people who come from rich and socially prominent families don’t always become the intellectual (myriad, elite).
6. great new discoveries in science can be made only by men and women with intellectual (compliance, audacity).
7. by the twentieth mile of a marathon, many runners have reached the end of their (perspective, tether).
8. the bitter strike closed shops, shut down factories, and (incapacitated, perturbed) an entire industry for months.
9. i wonder why the camp directors were unwilling to (comply, vie) with my request to keep a pet snake in my tent.
10. unless you want to (instigate, amass) a quarrel, don’t make insulting remarks about my friends and family.
11. how do you explain the fact that in practically every country the (elite, longevity) of women is greater than that of men?
12. the defense has told you about the defendant’s unhappy childhood, but how is that (relevant, willful) to the question of innocence or guilt?
13. perhaps in the long - term (longevity, perspective) of history, some events that seem very important now will prove to be minor.
14. i don’t think anyone can hope to (vie, grapple) with gloria in the election for “most popular student.”
15. jane addams was not only profoundly (perturbed, instigated) by the suffering of other people but also tried hard to help them.
16. if we have to share the same locker, please try to keep your things in the space (allotted, amassed) to you.
17. she delivered a simple, low - key speech, completely (devoid, relevant) of fancy language or emotional appeals.
18. he has had such bad experiences with motorcycles that he has become extremely (audacious, skittish) of them.
19. our course in life sciences has given us some idea of the (myriad, unison) varieties of plants and animals inhabiting the earth.
20. she had devoted her life to (amassing, allotting) not material riches but the love, respect, and thanks of every member of this community.

Explanation:

1. "Unison" means singing in harmony, which fits the context of singing in the chorus.
2. "Willfully" means deliberately or obstinately, which makes sense in the context of members insisting on having their own way.
3. "Grappled" means struggled or fought, which is appropriate for the context of struggling with temptation.
4. "Prodigious" means enormous or vast, which is suitable for describing a large amount of research.
5. "Elite" refers to a select group of people with superior qualities, which fits the context of people from rich and prominent families.
6. "Audacity" means boldness or daring, which is necessary for making great scientific discoveries.
7. "Tether" means a rope or chain used to tie something, which is not relevant in this context. "Perspective" means a point of view or outlook, which makes sense in the context of runners reaching the end of a marathon.
8. "Incapacitated" means made unable to function, which is appropriate for the context of a strike shutting down an industry.
9. "Comply" means to obey or follow, which is the opposite of what the camp directors were unwilling to do. "Vie" means to compete or strive, which makes sense in the context of competing with a request.
10. "Instigate" means to incite or provoke, which is appropriate for the context of making insulting remarks. "Amass" means to gather or accumulate, which is not relevant in this context.
11. "Longevity" means long life, which is relevant in the context of the lifespan of women being greater than that of men. "Elite" refers to a select group of people with superior qualities, which is not relevant in this context.
12. "Relevant" means related or applicable, which is appropriate for the context of the defendant's childhood being related to the question of innocence or guilt. "Willful" means deliberate or intentional, which is not relevant in this context.
13. "Perspective" means a point of view or outlook, which makes sense in the context of history. "Longevity" means long life, which is not relevant in this context.
14. "Vie" means to compete or strive, which is appropriate for the context of competing in an election. "Grapple" means to struggle or fight, which is not relevant in this context.
15. "Perturbed" means disturbed or worried, which is appropriate for the context of Jane Addams being disturbed by the suffering of others. "Instigated" means to incite or provoke, which is not relevant in this context.
16. "Allotted" means assigned or distributed, which is appropriate for the context of keeping things in the assigned space. "Amassed" means to gather or accumulate, which is not relevant in this context.
17. "Devoid" means lacking or empty, which is appropriate for the context of a speech lacking fancy language or emotional appeals. "Relevant" means related or applicable, which is not relevant in this context.
18. "Skittish" means nervous or easily frightened, which is appropriate for the context of someone being afraid of motorcycles. "Audacious" means bold or daring, which is not relevant in this context.
19. "Myriad" means countless or numerous, which is appropriate for the context of the variety of plants and animals. "Unison" means singing in harmony, which is not relevant in this context.
20. "Amassing" means gathering or accumulating, which is appropriate for the context of devoting one's life to gathering love, respect, and thanks. "Allotting" means assigning or distributing, which is not relevant in this context.

Answer:

1. unison
2. willfully
3. grappled
4. prodigious
5. elite
6. audacity
7. perspective
8. incapacitated
9. vie
10. instigate
11. longevity
12. relevant
13. perspective
14. vie
15. perturbed
16. allotted
17. devoid
18. skittish
19. myriad
20. amassing