Question

The students quarrelled _________ themselves.

Answer 1

$hi...$

The complete statement is :
___________________________
The students quarrelled between themselves .
___________________________

$hope \: \: this \: \: helps..$

Answer 2

The students quarreled among themselves.

Detailed answer

Among is the most appropriate word to be used at the particular sentence or moment.

• The word among makes the sentence a grammatically correct sentence that conveys a special meaning.
• The sentence now conveys that the students are fighting or quarreling among themselves.
• Any other word would make the sentence not mean anything or make it grammatically incorrect.