Question

The quality of the work was very poor and much of it had to be __ done​

Answer 1

Answer:

The quality of the work was very poor and much of it had to be __ done​

Explanation:

fixed

Answer 2

The quality of the work was very poor and much of it had to be _re_ done​

Explanation:

Since the work done was very poor, so much of it had to be redone. Therefore, the given sentence is complete by putting 're' in the blank space of the sentence.