Question

By whom was the bird killed ?
( Choose the correct active voice )
(A)
Who killing the bird ?
(B)
Who has killed the bird ?
_(C) Who killed the bird ?
(D) Bird killing by whom​

Answer 1

Answer:

i think d) Bird killing by whom is the answer.

Answer 2

Explanation:

(C) Who killed the bird ?

because past indefinite --was +verb 3 form