Question

There is a "no smoking sign". _ the wall. ( use preposition in the gap)

​

Answer 1

There is a "no smoking sign" on the wall.

Use of prepositions in English Grammar

• In English Grammar, Prepositions have an essential role in the completion of sentence structure.
• We use these words to connect one part of the sentence with another.
• Prepositions are mostly used before a noun, proper nouns, or to show time, location, and direction.
• Some more examples of prepositions are to, by, upon, of, from, etc.

So the correct answer will be on.