Roadmap B2 - 9A: Past modals of deduction

It’s eight o’clock and Helen’s in bed already: she can’t / must have been very tired.

I'm sorry but Samantha isn't here. She ___ already left the office.

Andrew did no revision for the exam but he's passed. I think he ___ cheated

Joe’s very clever: he must / might have passed all his exams with top marks.

He ___ arrived by now. It's only a 20 minute journey

Someone’s left their mobile here: it might / can’t have been Amy or Sheila.

Paul’s late: he can’t / might not have heard the alarm.

Sarah ____ been so happy when she found out she was being promoted

Steven isn’t in the offi ce: he must / can’t have gone home.

I left my bicycle in front of the library and it's disappeared. Someone ___ stolen it.

The boss was in a terrible mood. The meeting ___ been good.

She ___ studied really hard. She passed all her exams with excellent grades.

I had to wait 45 minutes for a bus yesterday. There ___ been an accident o