Level 3: Intermediate >> Speaking and Conversation Materials/Discussion Starters >> practices "must be", "can't be", "could be" and other modal verbs of deduction.
Modals of Deduction
Students look at one or more of the photos below and give sentences using on of the following expressions:
could be - might be - can't be - must be
Students can work in groups to come to some conclusions.
Obviously, this can be done with a huge variety of different pictures. Some examples are given here of the type of language to expect/aim for.
They must be at school.
It must be very frightened.
It might be a pet pig.
It can't be summer.