Modal verbs of deduction: Must, might, could, can’t — Exercise 2

1Emma studied very hard for the exam. She — choose —mustmustcan’t be confident about it.

2The baby is very quiet. He — choose —mustmaymight be asleep.

3Jack never eats meat. He — choose —can’tmustcould be the one who ordered the steak.

4I’m not sure where Lisa is. She — choose —mustcouldcan’t be at the library.

5The ground is wet. It — choose —mustmight notcan’t have rained last night.

6There’s no answer at the door. They — choose —mustmaycan’t be out.

7He looks very pale and tired. He — choose —mustcouldn’tmight not be ill.

8I’m not sure, but that sound — choose —mustcan’tmight be the wind.

9She has just bought a brand new car. She — choose —mustcan’tmight not be earning a good salary.

10He isn’t answering his phone and the lights are off. He — choose —mustcouldcan’t be at home.