1) Nina ___________English for 2 years. She has intermediate level now. a) has been learning b) has learned 2) It's getting cold. Birds_____________ to the South. a) have already flown b) have been flying 3) Mike ___________ to learn the poem. He'll get a poor mark. a) has forgotten b) has been forgetting 4) The children______________cartoons for 2 hours. Let's call them for a walk! a) have been watching b) have watched 5) The train_______________ . Hurry up! a) has just come b) has just been coming 6) She________________at this school for twenty years. a) has been teaching b) has taught 7) David _____________his studio since 10 o’clock. The walls are still wet. a) has been painting b) has painted 8) How long _______ this operation?- Since last night. a) has the doctor been doing b) has the doctor done 9) How many books ____________? - Around a hundred. a) has this writer written b) has this writer been writing 10) How long _____________for me? - For an hour. a) have you been waiting b) have you waited 11) The children ... baseball for hours. They are dirty. a) have been playing b) have played

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