问题
选择题
At the railway station, the mother waved goodbye to her daughter until the train was _______. [ ]
A. out of sight
B. out of reach
C. out of order
D. out of place
答案
答案：A
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At the railway station, the mother waved goodbye to her daughter until the train was _______. [ ]
A. out of sight
B. out of reach
C. out of order
D. out of place
答案：A
