Объясните, почему в следующих предложениях, слова написанные капсом(предлоги) должны стоять(ну тип, почему стоит at или for и т.д.): 1)the children were full of excitement when they arrived at the amusement park.2)they arrived early enough not to queue for the rides.3)after taking five rides in a row the children felt sick4)meanwhile the parents enjoyed the variety of cafes and restaurants in the park5)the restaurant that served food from around the world was the best6)the rides were of little value to the adults as the were not keen on them7)at the end of the day everyone was happy