Key to photocopy: grammar speculation and deduction

a

1. --
2. can't be
3. must be
4. might/could be doing
5. can't have been
6. must have been
7. might have gone
8. might not have thought
9. should be

b

1. ---
2. the disease is likely to 
3. you will probably be able
4. is unlikely to be
5. we are bound to
6. it's very unlikely that
7. she's bound to be
8. she will definitely