WORD FORMATION EXERCISE

http://www.english-grammar.at/online_exercises/word-formation/word-formation-sentences1.htm

http://www.englishexercises.org/makeagame/viewgame.asp?id=2996

BOTH, EITHER, NEITHER...

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-22003.php

http://www.examenglish.com/grammar/b1_both_either_neither.htm