UNIT 1: ADVERBS OF FREQUENCY: EXERCISES

http://www2.arnes.si/~oskplucija4/ces/howoften.htm

https://agendaweb.org/exercises/grammar/adverbs/frequency-1

https://agendaweb.org/exercises/grammar/adverbs/frequency-2

https://agendaweb.org/exercises/grammar/adverbs/frequency-3

http://learnenglishkids.britishcouncil.org/en/grammar-practice/adverbs-frequency