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English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. Please don’t litter in the corridor.
  2. Please use the suggestion box located in the ground floor.
    Are the prepositions in both sentences correct?
2
  1. Yes.
  2. Please use the suggestion box located on the ground floor.
3

Can I use without preposition as below:
“Please don’t litter the corridor.”

4

I’d prefer it without the preposition, but I don’t really like either of the above forms.

Please don’t drop/leave litter in the corridor
would be my choice.

5

GOOD MORNING OR AFTRNOON.PLZ CAN YOU HELP ME THE BOOKS TO RAED.SO THAT I CAN LEAN MORE