which sentence best uses prepositions?\no where is the band playing their concert at?\no i dont know up with…

which sentence best uses prepositions?\no where is the band playing their concert at?\no i dont know up with how much more i can put.\no i liked the company for which i was working for.\no when will you arrive at the opening gate?
Answer
Brief Explanations:
- "Where is the band playing their concert at?" has a redundant "at".
- "I don't know up with how much more I can put" has incorrect preposition - word order and is a jumbled expression.
- "I liked the company for which I was working for" has a redundant "for".
- "When will you arrive at the opening gate?" uses the preposition "at" correctly to indicate a specific location.
Answer:
When will you arrive at the opening gate?