Answer:
useless, in vain maybe
Explanation:
Morose means being sullen or ill tempered, so a morose person might think that all attempts are useless, probably in an ill tempered manner.
Answer:
Service is valuable in ways that cannot be measured in dollars.
Explanation:
The keywords (such as, like, for example, including) are an unknown set of words which is followed by examples to illustrate the meaning of the words.
<h3>What is a keyword?</h3>
A word or a phrase, which has a higher degree of significance or importance in the structure of the sentence or the entire paragraph, and may also serve as a code, is known as a keyword.
Hence, option D holds true regarding keywords.
Learn more about keywords here:
brainly.com/question/16559884
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Don't quote me on this, but it might be C
lol I'm pretty sure I annoy my friends but ok
