问题描述：
有以下4个答案应该选哪个：
A study of the people in China's ----------cities shows that saving money for children's education has become an important reason for saving.
A.ten large
B.ten largest
C.ten larger
D.the ten largest
A study of the people in China's ----------cities shows that saving money for children's education has become an important reason for saving.
A.ten large
B.ten largest
C.ten larger
D.the ten largest
问题解答：
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