Question

Some unknown boxer had knocked out the defending champion. The defending
champion ________________ knocked out by some unknown

Answer 1

Answer:

'had been' is supposed to be in the blank

Explanation:

Hope it helps!!

Answer 2

Answer:

was

Explanation:

In the sentence , the word ' was ' acts as a auxiliary verb

and In the sentence the auxiliary verb is missing . So , the

answer will be ' was ' .

Hope it helps...