The _______ that the injured be sent to the hospital without delay turned out to be wise.

Ancient Greeks were responsible for many of the _______ in science and other fields.

A successful scientist needs _____ if he wants to make hypothesis (假设) of how processes work and how events take place.

 In China, peach is a ______of long life and therefore makes an ideal birthday present. 

Johnson King is a fine musician; it’s a ______ to hear him play.