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So hard-working _____ that he sets a good example to all the other classmates．

   A． he is         B． is he         C． does he       D． he does

I don’t suppose Tom has told you the news, _______?

   A. do I B. don't I C. does he D. has he

 —Jack bought a new mobile phone the other day.

—_______?That’s his third one in just one month.

A.Had he                B.Did he                C.Does he           D.Has he

________，he never seems able to do the work beautifully.

 So hard-working _____ that he sets a good example to all the other classmates.