A
1 been, 2 were, 3 will / shall be, 4 have been, 5 will be, 6 are, 7 will / shall be, 8 were; was; 9 been;, 10 been, 11 were, 12 were/was
B
1 I have never been to Scotland.
2 Where have you been in the holidays?
3 It will be cold tomorrow.
4 The turnover would have been higher if it had been warmer.
5 Where were you last night?
6 I will / shall be in London next week.
7 He said (that) he would be at the station at eight o’clock.
8 How long has he been ill / sick?
9 I wish it were/was possible.
10 If I were you, I would refuse.
C
1 was, 2 is, 3 has been, 4 were, 5 had been, 6 have been, 7 has been, 8 will be, 9 is