John didn't come to school last week. (Must / sick)
He must have been sick.
One of the students failed the exam.
varied answers
I can't find my notebook! (must, leave at home)
You must have left it at home.
Ryan handed in his exam. (can't / finish already)
He can't have finished already!
Why is Isabel late for class? (might / oversleep)
She might have overslept.
I can't find my ticket. (must / drop)
You must have dropped it.
You saw an old friend. She had lost a lot of weight.
varied answers
Why is Carl looking so happy? (may, do well on the test)
He may have done well on the test.
You had a job interview. They haven't called you.
varied answers
Look at her diamond ring!
varied answers
A woman answers the phone. She starts yelling. Why?
varied answers