More and more attention has been drawn to the fact that many children are ________ in the countryside when their parents flood into the cities for jobs.
A.left off | B.left aside | C.left out | D.left behind |
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More and more attention has been drawn to the fact that many children are ________ in the countryside when their parents flood into the cities for jobs.
A.left off | B.left aside | C.left out | D.left behind |