Complete the sentences with either the Present perfect simple or continuous forms of the verbs in brackets
2, Brands ___(experiment) with computer-generated music for more than thirty years
3. He ___(try) to pass his driving test for five years- i dont think hell ever succeed
4. I (be) a member of coolme since i was fiffteen
5. I (not play) the piano since i was a child so I (practise) as much as possible recently
6. People (use) personal computers since the 1970s.
has been experimenting
has has been trying
has been
hasn't played, I've been practicing
have used
2. have been experimenting
3. has been trying
4. have been
5. haven't played, have been practising
6. have been using