Expressing Possibility

When can I see him? ___________________ come back before six today? (a. Would he... b. Is he likely to...)

I wonder who wrote that letter. ______________ Jim have written it? (a. Could b. Will)

I called her but there was no answer. She _____________left for New York already. (a.may have b. must have)

He said that he ________________ go to Italy in June or July. (a. should b. might)

Where is Anna? ---I don't know. She _____________ at the swimming pool or in the park. (a. could b. has to)

How did the robbers get in? ---We don't know yet. The old woman ___________________ to lock the door. (a. might forget b. might have forgotten)

It _______________ not be as easy as you think (a. can't b. might not)

He __________________ be able to help you. (a. may b. must)

Don't ring the bell when you get there. Maria's little baby ________________ sleeping. (a. may be b. may not be)

She _____________________ have to sell her car and other belongings to pay her debts. (a. will b. might)