fortunately - unfortunately

(a)   , I was able to find my keys before leaving the house.

(a)   , I forgot to save my document, and I lost all my work.

(a)   , I missed the bus, and now I have to wait for the next one.

(a)   , our cost-cutting measures have improved the company's financial stability.

(a)   , I struggle with understanding complex English texts, so I'm working on improving my reading skills.

(a)   , using English subtitles while watching movies has significantly enhanced my listening skills.

(a)   , inflation has been on the rise, impacting the purchasing power of consumers.

(a)   , the development of wearable technology has contributed to advancements in healthcare monitoring.

(a)   , online learning platforms have become more accessible, offering opportunities for remote education

(a)   , global economic uncertainties are affecting trade and investment across borders.