Deduction & Speculation exercises — Set 4: Past Deduction & Probability: Must Have, Can't Have & Could Have Exercises (Worksheet)

She passed the exam with the highest marks in the class. She incredibly hard.

He knew exactly where everything was in the building. He here before.

The whole cake has disappeared! Somebody it while we were out.

Their flight landed three hours ago. They at the hotel by now.

She was at home all evening — I saw her there. She the email from the office.

Tom didn't know anything about the surprise party. We him about it.

The match finished at 3 p.m. and he was at the office until 5 p.m. He the game live.

I posted the letter over a week ago and she still hasn't received it. It lost in the post.

I'm not sure why he left the party early. He ill.

Nobody answered the door when I knocked. They out already.

I don't know how the window got broken. The children a ball through it.

She didn't come to the meeting yesterday. She about it.

He looks very sunburnt today. He sunscreen at the beach yesterday.

The dog is very tired and calm. Someone it for a long walk earlier today.

I wonder why she was so upset at lunch. She some bad news this morning.

The front door was unlocked when we got home. We it before we left this morning.

There's a thank-you note on the desk. Somebody the present while we were away.

He looked completely confused during the presentation. He the preparation materials.

I can't find my umbrella anywhere. I it on the train this morning.