EF UpI/7A: Past modals

Rewrite the red sentence using must / might (not) / can't + have + verb.

I'm certain I left my umbrella at home. It's not in the office.

I...

Rewrite the red sentence using must / might (not) / can't + have + verb.

Holly's crying. Perhaps she's had anargument with her boyfriend.

She...

Rewrite the red sentence using must / might (not) / can't + have + verb.

I'm sure Ben has read my email. I sent it first thing this mornig.

Ben...

Rewrite the red sentence using must / might (not) / can't + have + verb.

I'm sure Sam and Ginny haven't got lost. They have satnav in their car.

Sam and Ginny...

Rewrite the red sentence using must / might (not) / can't + have + verb.

You saw Ellie yesterday? That's impossible. She was in bed with flu.

You...

Rewrite the red sentence using must / might (not) / can't + have + verb.

Perhaps John didn't see you. That's why he didn't say hello.

John...

Rewrite the red sentence using must / might (not) / can't + have + verb.

I'm sure Lucy has bought a new car. I saw her driving a blue VW Golf!

Lucy...

Rewrite the red sentence using must / might (not) / can't + have + verb.

I'm sure Alex wasn't very ill. He was only off work for one day.

Alex...

Rewrite the red sentence using must / might (not) / can't + have + verb.

They didn't come to our wedding. Maybe they didn't receive the invitation.

They...

Rewrite the red sentence using must / might (not) / can't + have + verb.

This tastes very sweet. I'm sure you used too much sugar.

You...