unit 3

That photo ______ be real, but I’m not sure.

• must

• might

• can't

That guy looks exactly like David. He _______ be David's twin brother.

• must

• may

• can't

I’m not certain, but I think the story _______ be fake.

• must

• could

• can't

You know a lot about computers. You _______ be interested in them.

• must

• might

• can't

David _______ be on social media – I’ve never seen him post anything.

• must

• may

• can't

That social media account _______ be fake, but I’m not certain.

• must

• could

• can't

This ______ be Isabel’s desk, because that isn’t her laptop.

• must

• may

• can't

I can’t find my phone! It ______ be in the library, or perhaps the cafe.

• must

• might

• can't

That boy ______ be Max. He’s taller than Sam, and Max is shorter.

• must

• could

• can't

I’ve seen the same story on several news websites. It ______ be true.

• must

• could

• can't