the airport has been in_____(服务）since 1998

the airport has been in_____(服务）since 1998 连词成句 return,has,airport, been ,service ,since, to, the, Hong he airport has been in ___ since 2000 (serve) (damage) ______during the war,the airport has never been use has since been the house has been _______ since the 1500s. It has been five years since the hospital （）（build） 动词填空. The old man has（ ）lonely since his wife left.A.been B.got C. my father has been working in the factory （since 1990） （对括起来 Lucy has been cleaning the house since came back home. He has never been the same since.这句话是什么意思. The work has been finished since they came here