— Is this Tommy’s suitcase?— No, it is not . It is .
---Excuse me,Sir.Do you have the time?---_______.
Prison Break is the best American TV play that I _____these years.
--Will you join us to play basketball on Saturdy afternoon?---______,but I promised to go swimming with Eric.
---Are Jim and Bob playing outside?----_______.They are doing their homework in the study.
--Who’s the man over there?Is it Mr Black?----It _____be him.He’s much taller.