题目内容
At the railway station, the mother waved goodbye to her daughter until the train was ________.
[ ]
A.out of reach
B.out of sight
C.out of order
D.out of place
答案:B
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题目内容
At the railway station, the mother waved goodbye to her daughter until the train was ________.
A.out of reach
B.out of sight
C.out of order
D.out of place