问题
选择题
His whole school education _____ only 2 years because of his illness. [ ]
A. added up
B. added up in
C. added up to
D. was added up
答案
答案：C
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His whole school education _____ only 2 years because of his illness. [ ]
A. added up
B. added up in
C. added up to
D. was added up
答案：C