7.
1 - e) Cheryl has been working here for the last three years.
2 - d) She went to Greece every summer since she was a young girl.
3 - a) i have not seen him since Jane's party last month.
4 - f) It has been raining for hours.
5 - c) They were only waiting for a few minutes.
6 - b) James hasn't phoned us since he changed his job.
8.
incorrect words: a)worked; b)to; c)since; d)to; e)never; f)to
Sper ca te am ajutat!! :)