Answer:
3. bubbling of the bathtub
4. -It makes the poem mysterious.
-"A stranger called this morning"
-The stranger left the people in the house in silence so maybe he called to tell them a loved one had died. You can ramble something here idk.
C. Because
You should avoid words like “etcetera” and “that’s” because they’re informal. “You” simply should not be used unless you’re writing in 2nd person, as you probably learned in elementary school.