You _______have a wrong number. There’s no Mr Johnson here.

What a pity! Considering his ability and experience, he ____ have done better.

---I was told to be here at this time.---Sorry, you ___________. I forgot to tell you we've changed the plan. 

–Excuse me,        I get back my umbrella, madam? –I’m really sorry. I thought it was mine.

—I don’t care what my teachers think．—Well，you________．