the following sentence contains nouns that are either abstract or concrete; can you identify which is which? You're in great health Dr. Unger said

Dr Unger is abstract,whileYou're is concrete.

Explanation:

i think sylvia like her but she not trying to show it and i think rainbow will forgive her.

explanation:

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).