Salut!
4.
1. - still
2. - already
3. - since
4. - lately
5. - just
6. - How long
7. - ever
8. - always
5.
2 - yet
3 - just
4 - never
5 - for
6 - since
6.
2 - you've been swimming
3 - have you heard
4 - hasn't graduated
5 - have you been studying
7.
2 - I've worked
3 - have you been staring; I've forgotten
4 - haven't tasted
5 - have travelled
