Ответ:

She has believed in ghosts since she has visited a gothic castle

2 It has been raining since 6 o'clock this morning

3 Have you been working in television for a long time?

4 My mobile phone has not been working since yesterday

5 Jason has been unemployed since last year

6 Has the concert finished yet?

7 My grandparents have been living in the same flat for all their life

8 The children have been playing computer for three hours

9 We have been learning English since last april

10 Sally has gone away the weekend

11 How long have you been living abroad ?

12 I have been wanted to go New Zealand for a long time

13 She has not seen her fellow students since graduation

14 Aunt Amy has been ill since last Wednesday