Type the correct answer into the gap:
must
can't
might.
1. She isn't answering the phone. She
be out.
2. They
be Spanish, they're speaking Portuguese.
3. He
have a job interview today - he's waiting to hear from the company.
4. He drives an expensive car. He
have a good job.
5. It's too early to have finished the exam. He
have finished.
6. Sara's very busy. She
not be able to come tonight.
