Each English worksheet is designed to print onto a single A4 sheet [using IE4/IE5 browser setting for "medium text"], and may be used as a non-commercial education resource, free of charge, provided only that each worksheet is printed / photocopied without modification and includes the whole page as it appears on line.
It is recommended, when printing, to use the option "print pages 1 to 1" (rather than "print all pages") as each worksheet is designed to print onto a single sheet ["portrait", i.e. shorter side at the top] but because of the html may sometimes overlap onto a second for printing [the second (blank) sheet should not be required]. Draft quality is usually sufficient for a good copy - however use "presentation" if making originals for photocopying.