Answer: Caused to be a certain nature
Explanation:
If you replace the word “rendered” with “caused to be” the statement still makes sense. A good rephrasing would be:
The sad cries of the many slaves, horrible yesterday, are made worse by the joyous shouts that they hear.
I'm not sure what the lesson is, but the answer that makes sense the most is number. Number because most lessons in subject-verb agreement concerns the singularity and plurality of the subject at hand
The answer is that they both can go without drinking water, hopefully this was helpful
It helps located letters to form a word