Choose the correct phrase: can't have, must have, could have


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   can't have      could have      must have   
1. He didn't hear the phone. He been fast asleep.
2. There is no one by the name Jack here. You had the wrong number.
3. I can’t find my glasses. I left them at home.
4. He been there.
5. I made a mistake.
6. He written this, he doesn't speak Spanish.