After almost thirty years lf no direct

After almost thirty years lf no direct flights,___US passenger plane on Thursday left San Francisco,California for ____Ho Chi Minh City,Viet Nam,formerly known as Saigon.

A a;×
B the;×
C a;the
D the;the
答案是什么？为什么？谢谢！

After almost thirty years lf no direct It was th the school__was named after a hero__he spent his childhood 国外来证规定“shipment after April 10th till 30th”出口公司持4月10日的提单议付时遭退单，为什么？ the internal revenal service imposes a penalty on any taxpayer who files after the 15th of April almost是什么意思？ th%是什么意思？ 找一首歌，叫almost Almost Over You almost与mostly区别 almost here歌词??