What role do light and darkness and day and night play in the poem 'do not go gentle into that good night"? the poem is about those topics. they symbolize life and death. they create a happy mood. they show the passage of time.

My cat and my dog like best friends

How do i can change this sentence : a modern physician in a small town not only is proficient in general medicine but surgery as well. to parallel structure?

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?