6. Present Perfect Continuous or Present Perfect
She ________ (study) for days. She hasn´t left her room all week.
She has been studying for days. She hasn´t left her room all week..
She _________ (already / write) six letters this morning.
She has written six letters this morning.
How long ________he _______ (see) her? - Not long, but they're getting married next month.
How long has he been seeing her? - Not long, but they're getting married next month.