问题
选择题
Many children are ________ in the countryside when their parents flood into the cities for jobs. [ ]
A. left behind
B. left off
C. left aside
D. left out
答案
答案：A
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Many children are ________ in the countryside when their parents flood into the cities for jobs. [ ]
A. left behind
B. left off
C. left aside
D. left out
答案：A