Complete the sentence with the definite consequence using would, not a possibility with could or might: Iris is chronically forgetful, a permanent trait. If she had better organisational habits, she ___ the score at Tuesday's rehearsal. (remember)

Explanation

Would have remembered states the definite unreal consequence the sentence asks for, connecting the standing trait with the missed action at Tuesday's rehearsal. Could have remembered or might have remembered would state only a possibility, which the instruction excludes, and would remember would describe a present or future consequence rather than that completed occasion.