Modal Verbs of Deduction in the Past

We are not certain, but Andrew ___________________ (break) his foot.

Look at those tracks! They are unmistakable. A bear __________________ (walk) here.

I refuse to believe it. Tim __________________ (get) the promotion. That would be absolutely ridiculous.

There's no doubt in my mind. Oliver Arkwright _______________ (paint) this masterpiece.

I am caught in two minds. On the one hand, the butler _________________ (steal) the money, but on the other hand, it could have been the cook.

I'm not entirely confident in my assertion, but I think you ___________________ (see) a rare visual phenomena called a parhelion.

I knew it! William ___________________ (hear) some good news. That is why he was grinning from ear-to-ear when I saw him in the office today.

He ________________ (buy) a Faberge egg. It must be a fake. All of the real ones are owned by a Russian billionnaire.

The audience _________________ (enjoy) the show. That is why they were shouting 'encore!' even after the second time the musicians returned!

Mark ____________________ (feed) the dog this morning. The new can of dog food I bought hasn't been opened, and it was the only one in the cupboard.