Websites: be=Better English; eeo=English Exercises Online; ch=Churchill House
(School of English Language)
Exercise types: mc=multiple choice; gf= gap-fill; mtc=matching; owo=odd word
out;
Levels: 1; 2; 3; 4; (etc.)
E.g.: (be> mc 1)= Multiple choice exercise from the website "Better
Eglish" at the biginner's level.