Răspuns:
71.
1) must be
2) must have been
3) can't be
4) must be using
5) may be having
6) might have enjoyed
7) may be delivering
8) can't have been concentrating
9) must be
72.
3) might be
4) can't be
5) might be in
6) must have been
7) can't be ignoring
8) might not told
9) might be what you
