Răspuns:
present perfect continuous: c,d
present continuous: a,b,e
The difference in meaning is that present continuous shows an action that is taking place at the moment and is continuous, while present perfect continuous shows an action that started in the past and is continuing for a certain amount of time that continues in the present as well or an action started in the past wich took place for a certain period of time and is finished now whose effects bother us.
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