Which sentence is punctuated correctly?

my friends joe, maria, and i drove into the city. last night we went to a concert in the park.

my friends joe, maria, and i drove into: the city last night we went to a concert in the park.

my friends joe, maria, and i drove into the city last night; we went to a concert in the park.

How to combine the two sentences in bold.

In the por "heaven" what things does echo say will last?

Laugh and be merry, remember, better the world with a song,    better the world with a blow in the teeth of a wrong.    laugh, for the time is brief, a thread the length of a span.    laugh and be proud to belong to the old proud pageant of man. (laugh and be merry/john masefield/public domain) which of these is the main idea of the poem?