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Modals of Possibility
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Jenny (must / may / can't) have a problem. She's been crying all day.
must
Oops!
Okay!
Someone called but I don't know who it was. It (must / may ) have been Alice.
may
Oops!
Okay!
I told Charles - only Charles - my secret and now everyone knows! He (must / might) have told everyone.
must
Oops!
Okay!
She (must not / might not / can't) want another candy. She has already eaten 50!
can't
Oops!
Okay!
I don't want to go to the beach. I heard it (must / might / can't) rain later.
might
Oops!
Okay!
I am not in touch with my high school friend Lola any more. She might have gotten married or she (might / must) have moved away.
might
Oops!
Okay!
Mark goes skiing every weekend. He (must / might / can't) like skiing.
must
Oops!
Okay!
I'm not sure why they don't come with us. They (must not / might not / can't ) have enough money.
might not
Oops!
Okay!
I had my keys 5 minutes ago and now I can't find them. They (must / might / can't) be here somewhere.
must
Oops!
Okay!
Irv looks unhappy. Maybe he lost his job or his girlfriend (must / might) have broken up with him. I don't know.
might
Oops!
Okay!
I'm not sure if John is married. He (must not / might not / can't) be.
might not
Oops!
Okay!
Shirley (must / might / can't) have a driver's license. I saw her driving downtown.
must
Oops!
Okay!
I don't know where Adam is. He (must / might / can't) be at the bank.
might
Oops!
Okay!
She (must not / might not / can't) be a vegetarian. I saw her eating a hamburger for lunch.
can't
Oops!
Okay!
Luke (must / might / can't) be tired today because he couldn't sleep at all last night.
must
Oops!
Okay!
David (must not / might not / can't) have broken his arm yesterday. I saw him playing tennis today!
can't
Oops!
Okay!
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