1c, 2f, 3d, 4a, 5b, 6e

   

   

   POSSIBLE ANSWERS

   Am I allowed to, can, can’t, mustn’t, will be allowed to, could, can‘t

   

   

   1C, 2P, 3C, 4P, 5C, 6P, 7C, 8P, 9C, 10P, 11C, 12P, 13C, 14P

   

   

   didn’t have to be, must be/must have been, can’t be/can’t have been, must be, must be, had to
   be, must have been imported, must have laid

   

   

   was/were, contained, opened, was/were, could be, had/could have

   

   

   have been

   have been

   make

   caught

   didn’t wait up

   hadn’t done

   

   

   1 have to/must, 2 must/have to, 3 has to/will have to, 4 MUST, 5 having to, 6 should have, 7
   must/have to/should, 8 will have to/must/should/have to, 9 have to/must, 10 should, 11 had to