Question

(a) Don't look down upon the poor. (Passive)
Answer
(b) Suddenly I noticed a very nice deer. (Interrogative)
Answer
(c) It only remained sleeping. (Negative)
Answer
(d) What a sound sleep it slept! (Assertive)
Answer
(e) A deer is found nowhere but in the Zoo now. (Affirmative)

Answer 1

b) Didn't suddenly I notice a very nice deer?

c) It did not only remained sleeping.

d) It slept a sound sleep.