问题补充：
—David has made great progress recently.
— ,and .
A. So he has;so you have
B. So he has;so have you
C. So has he;so have you
D. So has he,so you have
答案：
A. So he has;so you have
(答案→)B. So he has;so have you
C. So has he;so have you
D. So has he,so you have
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