Exercises of 'possibilities and ability' A. can / be able to 1. I_______ (not) tell you the password, because I do not know it, either. 2. I_______ (not) tell you the password, because it is not allowed by the rule. B. be / must / can / should 3. It ______ Tom. I am sure. I heard his typical footsteps. 4. It ______ Tom. I am sure. He said he would come at 15:00, and now it is 14:55. 5. It ______ Tom, or Jerry. Both of them said they would come at 15:00, and now it is 14:55. 6 It ______ Tom. Both of Tom and Jerry said they would come at 15:00, and Jerry is here already. C. Likely / probably/ possible (possibly)/ unlikely/ improbably (improbable)/ impossibly (impossible) 7. It is almost _________ for us to finish this work on time. It is too difficult and we have got such a short amount of time left. 8. It is almost _________ for them to finish this work on time. They are just that kind of man, all talk no walk. 9. You can come around 15:00. I’ll be ______ free then.