Answer:
Sentence 4 should be revised to incorporate strong supporting evidence.
I would say that "constant cry" and "Chesterton's cat" are the obvious ones. However "echoed in our ears" is a pretty subtle one that you can definitely make a solid argument for.
Answer:
B. Dr. King is hopeful, whether or not the church decides to help.
Answer:
Apostrophe
Explanation:
The persona is directing the words to someone who appears to be in his presence
"...which you were probably..."
The speaker is addressing an absent or imaginary person that the reader cannot see but he can see or pretend to see
