—Why does        take Tom an hour to get home?— I don’t know. Maybe the traffic is heavy.

—Whose MP5 is this, Tina?— It’s _____. My mother bought it for me last Sunday.

— Is this Tommy’s suitcase?— No, it is not          . It is          .

--- Why are you so happy?--- That’s because an old friend of            is coming.

—Have you ever seen a panda , Linda?—Yes , I just saw _________at the zoo last Sunday .