--------David has made great progress recently.------------_

--------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

当句子的主语和前一个句子指的人一致时,用so+主语+谓语（sb.确实这样）；当句子的主语和前一个句子的主语指的人不一致时,用so+谓语+主语（sb.也是这样）.
选B

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