Share Modals: deductions about the past
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Where's Clare? Her bag's here and her computer's still on so she _____ gone home.
must have
can't have
might have
I can't remember my password! But I _____ written it in my notebook as sometimes I do that.
might have
couldn't have
must have
He wasn't answering the phone before. Maybe he went to the shop or he _____ been in the shower.
might have
must have
couldn't have
Sorry, I don't know if she's here or not. She was feeling ill so she _____ gone home.
can have
must have
might have
She _____ cleaned the whole house on her own in two hours. She must have had some help.
can't have
must have
might have
Wow! Have you finished all that already? You _____ been hungry!
can't have
might have
must have
He _____ known about it when I saw him. I'm sure he would have told me.
must have
might have
couldn't have
Oh, great! His car's here. He _____ come home earlier than planned.
can have
must have
might have
How did she fail that exam? She _____ studied very much.
can't have
must have
could have
Why were there no buses yesterday? Maybe it was the snow or they _____ been on strike.
might have
must have
couldn't
You _____ seen her, surely! She was standing right in front of you.
can't have
must have
might have
Let's ask at reception to see if they have your keys. Someone _____ found them.
can have
can't have
could have
He _____ gone to Portugal. He didn't have a passport.
might have
must have
couldn't have
I explained the homework but she did the wrong page. She _____ misunderstood me.
must have
might have
can't have
Oh no! My phone's not in my bag. I _____ left it at home.
must have
can have
couldn't have
It is still a mystery how the robber gained access to the bank. Police are investigating whether the suspect _____ known one of the employees.
must have
couldn't have
might have
