Correct ways to say these sentences:
a) Ouch! I just got stung by a bee.
b)Man's first time walking on the moon. (I assume this is what you meant)
c)Incredible news! Columbus has discovered America! (This sentence is fine.)
d) I've been trying to give up smoking for years.
e) I travelled all my life. I went everywhere. (Correct, but for American English, it would be traveled with one 'L'.)
f)'What's wrong?' "I lost my wallet."
g) I've learned English
h) 'Your face is all red'. 'I've been exercising.'
i) John! Hello! I haven't see you in ages!