Modals for present and past deductions

If Suzane said that, it _______ be true. She never lies.

• must

• can't

Sorry, but I'm not Connor. You _______ be confusing me with someone else.

• must

• can't

She ________ left early because I didn’t see her at the meeting.

• must have

• can't have

She ______ be in love with him. She told me she hates him.

• must

• can't

You _________ seen him at the party; he was out of the country last weekend.

• can't have

• may not

I don't have my keys with me. I ________ left them at home. I hope I didn't lose them.

• can't have

• may have

I got an email saying I won $50,000. It ______ be true!

• must

• can't

He _______ forgotten to send the email; he’s been really busy lately.

• must have

• may have

This ________ to be right address. I followed Google maps directions.

• has to

• mustn't

Look at the electricity bill. It says we owe $3,000.- MXN.

That ________ be right!

• mustn't

• can't