Голоса 1, Урок 10
8. Have Been Doing - Use Present Tense
Read the section 8. Have Been Doing - Use Present Tense on page 373 of the Textbook.
The adverb давно 'for a long time' implies an unfinished action or process.
Complete Упражнение 10-36 on page 373 of the Textbook.