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Past modal verbs of deduction
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I can't believe Jim hasn't arrived yet. He____ taken the wrong train.
I can't believe Jim hasn't arrived yet. He must have taken the wrong train.
Oops!
Okay!
Sarah looked very happy. She ____ passed her driving test.
Sarah looked very happy. She must have passed her driving test.
Oops!
Okay!
I don't know where they went but they _____ gone to Paris or Marseille.
I don't know where they went but they could have gone to Paris or Marseille.
Oops!
Okay!
You _______ paid more attention. Now we are lost.
You ought to have paid more attention. Now we are lost.
Oops!
Okay!
The window was broken, so the thieves _______ got in through that window.
The window was broken, so the thieves must have got in through that window.
Oops!
Okay!
I _____ revised more for the exam. I was lazy, and now I'll fail!
I should have revised more for the exam. I was lazy, and now I'll fail!
Oops!
Okay!
I didn't know you were going to Phil's party yesterday. You _____ told me!
I didn't know you were going to Phil's party yesterday. You should have told me!
Oops!
Okay!
Nobody knows exactly why he died. But we think it ____ been an accident.
Nobody knows exactly why he died. But we think it might have been an accident.
Oops!
Okay!
You _____ been ill yesterday. Jessie saw you at the bowling alley.
You couldn't have been ill yesterday. Jessie saw you at the bowling alley.
Oops!
Okay!
I can't believe Jim hasn't arrived yet. He______ taken the correct train.
I can't believe Jim hasn't arrived yet. He can't have taken the correct train.
Oops!
Okay!
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