They arrived long before the Europeans.这里arrived为何不用had arri

They arrived long before the Europeans.这里arrived为何不用had arri They had already had breakfast before they arrived at the ho Before the police arrived,the alien left the shop.(为什么选择arri 正确形式:The committee had a heated_(discuss)before they arrived she_____the blackboard before the teacher arrived.A,had clea they arrived just before the football match began. 英语翻译The Portuguese as the first Europeans arrived in Guangzh After she had left,they arrived the station. Hardly had they arrived at the airport ___the plane started ( )1、They had no sooner arrived at the airport I arrived home long before you. 为什么不用had left,arrived?而用left,arrived.