adverbs of frequency and linking words

http://www.myenglishpages.com/site_php_files/grammar-exercise-adverbs-frequency.php#.Uzl1jKh_snY

http://www.englishexercises.org/makeagame/viewgame.asp?id=7330

http://www.flo-joe.co.uk/preliminaryenglish/grammar/adverbs-of-frequency.htm

http://www.eflworksheets.com/onlineexercises/beginners/grammar/linkers1.htm

http://www.esl-lounge.com/student/grammar/4g67-linking-words.php

http://www.learn-english-today.com/wordgames/hotpot-quizzes/linking-words1.html

http://www.flo-joe.co.uk/cpe/students/strategy/openclze/conj.htm