Young williw sapkings were grabbed up before they could delvelip into sturdy trees

Weeping willow trees, which are native to northern China, are beautiful and ... Their width can equal their height, so they can wind up as very large trees. ... With the proper cultivation, they can grow into strong, hardy, beautiful trees. ... and permanence when a prophet in the Book of Ezekiel plants a seed "like a willow

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the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).