问题
选择题
It was his studying in No.2 High School of Baoding for three years ____ laid the foundation of his
successful career.[ ]
A. that
B. when
C. since
D. until
答案
答案：A
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It was his studying in No.2 High School of Baoding for three years ____ laid the foundation of his
successful career.[ ]
A. that
B. when
C. since
D. until
答案：A