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I explained the homework but she did the wrong page. She _____ misunderstood me.
must have
Oh no! My phone's not in my bag. I _____ left it at home.
may have
I _____ left my wallet in the restaurant. I paid for the taxi home afterwards.
can't have
Where's Clare? Her bag's here and her computer's still on so she _____ gone home.
can't
I can't remember my password! But I _____ written it in my notebook as sometimes I do that.
may have
He wasn't answering the phone before. Maybe he went to the shop or he _____ been in the shower.
may have
Sorry, I don't know if she's here or not. She was feeling ill so she _____ gone home.
must have
She _____ cleaned the whole house on her own in two hours. She must have had some help.
can't
Wow! Have you finished all that already? You _____ been hungry!
must have
He _____ known about it when I saw him. I'm sure he would have told me.
can't have
Oh, great! His car's here. He _____ come home earlier than planned.
must have
Sarah didn't answer the phone. She ______________been sleeping.
might have
Tom ____________been at the mall last night. He was out of town visiting his mother.
can't
