第1个回答 2011-03-22
But this apple fell on the ground.
第2个回答 2011-03-22
However,this apple only fell to the ground.
第3个回答 2011-03-22
but the apple fell on the ground.
第4个回答 2011-03-22
but this apple dropped on the ground
第5个回答 2011-03-22
but the apple fell on the ground.