Question

preposition ( We must protest ----------- in justice​

Answer 1

We must protest against injustice​.

• Prepositions are groups of words that are used just before a noun or a pronoun.
• Prepositions are used to show direction, place, time, or to introduce anything.
• In the sentence "We must protest against injustice​.", "against" is the preposition used.
• The meaning of protest is demanding something. "against" is the correct appropriate as it describes the object present.