Odpowiedź:
1) Have you been running?
2) have been trainig
3) have spent
4) have ever run before
5) haven't gone
6) Has he been working
7) has had
8) has studied
1) Have you been running?
2) have been training
3) have spent
4) today I ran (past simple) faster than I had ever run before (past perfect bo do chwili wcześniejszego biegania)
5) haven't gone
6) Has he been working
7) has had
8) has been studying