15.We cannot have a peaceful and just society so long as any one race is required to be (responsive submissive) to another

submissive

16.I didn't have time to write a letter to Lucy, but I (appended enumerated) a few sentences to my sister's letter expressing my congratulations
appended

17.Instead of working so hard to prepare (replicas allegiances) Of famous works of art why don't you try to create something original
replicas

18.Only seven members of the Security Council voted on the resolution; the others (abstained appended)
abstained

19.When he felt low he found that singing (exalted amalgamated) his spirits
exalted

20.It remains to be seen how (responsive glum) the students will be to the new method of teaching mathematics
responsive

Yay! Again, all of these are right.

Thank you, Ms.Sue! :)

You're welcome, Jerald.

:-)

To determine the correct word choice for each sentence, you can use context clues and your understanding of word meanings. Here's an explanation to help you understand how to find the answer for each sentence:

15. In this sentence, we are discussing a peaceful and just society and the requirement of one race being submissive to another. The word "submissive" means yielding to authority or control. The opposite of being submissive in this context would be to stand up for one's rights or be assertive. Therefore, the correct word is "responsive."

16. The sentence states that the person didn't have time to write a letter, but added a few sentences to their sister's letter. The word "appended" means to add or attach, which fits the context of the sentence.

17. The sentence suggests that instead of creating copies of famous works of art, the person should try to create something original. The word "replicas" refers to copies or reproductions. Therefore, the correct word is "replicas."

18. The sentence mentions that only seven members voted on the resolution, while the others did something else. The word "abstained" means to choose not to vote or take part in something. Therefore, the correct word is "abstained."

19. The sentence describes how singing affects the person's spirits when they are feeling low. The word "exalted" means to uplift or raise someone's spirits. Therefore, the correct word is "exalted."

20. The sentence states that it remains to be seen or uncertain how the students will respond to the new teaching method. The word "responsive" means to react or answer to something, which contrasts with "glum" (sad or gloomy). Therefore, the correct word is "responsive."