[Bug-wget] How do I use relative files on the cmd line with a base?

[Linda Walsh]

I have a list of files in a directory.

I only want each wget to retrieve 10 of the files, so I want to use
parallel to put 10 of the files on wget's command line.

I tried specifying the base with -B, but it seems to ignore it.

how do I specify a base with files on the command line?

I've wanted to do this before ..... where several files I want to fetch
are in 1 dir, and I only want to type the dirname 1 time, so how does
one do this in wget?

Thanks...
linda