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题目内容
（兰州大学大学英语（3））
19.
(4分)He was only in__ at the time.
A. his 20.s
B. the 20.s
C. his twenties
D. the twenties
(4分)He was only in__ at the time.
A. his 20.s
B. the 20.s
C. his twenties
D. the twenties
参考答案