问题补充：
－David has made up his mind to continue with his studies.
－ and .
A. So he has; so have I
B. So has he; so have I
C. So he has; so I have
D. So has he; so I have
答案：
(答案→)A. So he has; so have I
B. So has he; so have I
C. So he has; so I have
D. So has he; so I have
解析：考查特殊句式。So+同一主语+助动词/情态动词/系动词;表示上文所说情况属实，意为：的确如此。So/neither+助动词/情态动词/系动词+另一主语，表示上文的情况同样适用于另外一人。本句句意：—David下定决心要继续他的学习。—的确如此，你也一样。故A正确。
