1.where is the post office (near) 2.liu ying is sitting in t

1.where is the post office (near) 2.liu ying is sitting in the row(two) 3.the students put their
1.where is the post office (near) 2.liu ying is sitting in the row(two) 3.the students put their hands behind backs(they) 4.this is not my ruler is over there
4.this is not my ruler is over there( i)

1.the nearest
2.second
3.theirs
4.mine
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