FOR - Have you been waiting here ____ two hours?, HAS - She ____ been working at that company for three years., WHAT - ____ have you been doing for the last 30 minutes?, SINCE - James has been teaching at the university ____ June., BEEN - Why has Nancy not ____ taking her medicine for the last three days?, LATELY - I have been feeling really tired_______., HOW LONG - _____ have you been learning English?, PRACTICING - Lisa has been _______ her English all morning., BEING - The house has been _____ painted all afternoon., ALL NIGHT - They have been smoking ______.,

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