Modals: deduction and possibility

Jannie definitely won't dance in the competition; she's singing on Stage 1 right now.

• can't

• must

• might

My aunt _____ be a blogger. She's never used a computer in her life!

• may

• must

• can't

I'm sure that's the band's guitarist over there.

• must

• might

• could

We ______ go to the park after school if you like.

• could

• can't

• must

Those two girls _____ be twins. They look exactly the same!

• can't

• must

• might

"Is it going to rain?" "I'm not sure. It _____"

• must

• may

• can't

It's possible that it will rain on Saturday.

• must

• can't

• may