Sentence: "Which picture of himself does Mary think that John said that Susan likes?"
Would a linguist rate this sentence to be acceptable linguistically?
A: acceptable

Sentence: "Fred is thinking about whether he should stay in Seoul."
Would a linguist rate this sentence to be acceptable linguistically?
A: acceptable

Sentence: "A proof that God exist does."
Would a linguist rate this sentence to be acceptable linguistically?
A: unacceptable

Sentence: "Shirley seems to have Fred promoted."
Would a linguist rate this sentence to be acceptable linguistically?
A:
acceptable