Odpowiedź :
Odpowiedź:
1. How long has he been collecting stamps?
2. Has she been waiting here long?
3. What have you been doing recently?
4. How long have they been living next door to you?
5. Who has she been seeing recently?
Wyjaśnienie:
budowa pytań w czasie Present Perfect Continuous:
Has/Have osoba been czasownik+ing reszta zdania ...?