Which of the following lines from king's letter uses a metaphor to describe frustration?

"in those days the church was not merely a thermometer."
"it was a thermostat that transformed the mores of society."
"there comes a time when the cup of endurance runs over."
"we have gone through all of these steps in birmingham."

Asap read the bottom. use these 7 words to make 2 similies, 2 personification, 2 metaphors, and 1 of any so much backpack toaster drummer beach heart bicycle microwave examples: (if the examples were a quarterback, a wave, and stars) 1. the quarterback is a cheetah running down the field. (metaphor) 2. like a wave, the birds in autumn move through the air crashing into invisible shores. (simile) 3. the stars danced in the night sky. (personification) remember to write using complete, correctly capitalized sentences for each of the examples you provide. also, proofread and spell check carefully.