This new airport has been in service for six years ago

The new airport has been in _____ (useful) for ten months. 选择填空完成句子He has been in Bangkok___(for ten years ago/for a lo Miss Song has been in this school since five years ago同义句转换, 同义句He has been learning English for six years They have been in this city ＿ three years ago.(A.for B.about This house has been built 200 years ago. Macaroni has been grown in this area for over six hundred ye 新概念中有一句macaroni has been grown in this area for over six hun Has he been a docture for three years ago? Mr Green has been in Beijing since three years ago. She has been studying in this school for 3 years 对 for 3 yea he has been married for six years.为什么用has been married 而不用ha