Question

The robber killed him ___ knife.

Answer 1

the robber killed him with/from knife

Answer 2

Answer:

The robber killed him with knife.

Explanation:

• Prepositions are words that govern a 'noun or a pronoun' and express its relation with respect to its usage in the sentence. Basic examples of prepositions include: 'at, on, in, before and after'.
• Prepositions form a vital part in the English language as they are used to link the pronouns and the nouns together for the sentence to make sense.  

For example:  a. Upon seeing the majestic sight, we lit up with bliss.

b. let us all look around in this area.