Using biwired cables on speakers with only 2 connections

I generally have bought biwire speaker cables in the past, and now I have speakers that can't be bi wired.

Is there any problem if I only use two of the four wires and just Cover the other two wires so they don't touch each other. I hate the fact that I bought really expensive speaker cables and now I have this issue.

Do I use the high pass or the low pass LR pair?  Which have been marked this way so I trust there was actually a reason for them doing this and not just cosmetic

Will this impair sonic performance ?