Review - Modals of Deduction

I'm leaving work now but I ___ be a little late if there's traffic on the road.

• could
• must
• can't
• must not

Of course John isn't here today. He spent the whole night drinking. He ___ be at home with a serious hangover.

• may
• can't
• must
• will

You ___ know Peter because he went to the same school that we went to but he is a few years younger than we are.

• will
• must
• can't
• might 

I'm sorry, you ___ be confusing me with someone else, that's not my name.

• can
• could
• must
• might

You ___ possibly be tired. You've just woken up.

• must
• could
• can
• can't

They ___ be Spanish, they're speaking French.

• can
• might
• could
• can't

That ___ be Danny. He said he was going abroad this week.

• can't
• might
• will
• could

Jules is very busy.  She ____ be able to come tonight.

• might
• must
• might not
• can

It's too early to have finished the exam. He ________have finished.

• can't
• can
• must
• could

He drives an expensive car.  He ______have a good job

• can
• could
• must
• might