They can't pass the exam unless they "study" hard.
Answer:
You need to click the word "others".
Explanation:
In order for the sentence to be grammatically correct, you need to change the word "others" to "other's" in order to show possession of the word "opinions".
<span>Many white Southerners wanted African American to remain as servants.</span>
The valley later became a center of mining for borax.
because Borax was the center valley.
