Answer:
Answer is in the explanation.
Explanation:
In grammatically correct sentences, subject and verb must agree in person (first, second, third) and in number (singular, plural). The given passage has three disagreements:
1) ...<em>the fate of the diamond were unknown</em>...
Since <em>the fate</em> is third-person singular it needs to be followed by a verb <em>was
</em>
2) <em>neither men or conflict have dimmed...
</em>
It is a general rule that when we have a neither/nor (either/or) construction, the verb agrees with the closest subject ( in this case<em> the conflict</em>) which is in the third person singular, so it needs to be followed by the verb<em> has</em>
3) ... <em>the twin eighty-year-old brothers suggests.</em>..
The subject here is<em> the twin brothers</em> (they) which is third person plural, so the following verb must be <em>suggest</em>
