Mr. Smith is always on time for everything. How ________ it be that he was late for the flight?

She ________ someone, so I nodded to her and went away.

I’s ________ of Bob to do a disappearing act just when there’s work to be done!

I can’t remember _____ made the teacher give Mary the permission to leave the class earlier.

lm is, I have to say, not a bitinteresting——Why It’s ______________ than the filmsI have ever seen