阅读下面短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。
A group of  frogs were traveling through the forests . but u_________ two of them fell into a hole . The other frogs tried to help them . When they saw howd__________ the hole was , they cried to the two frogs that they could not be saved . The two frogs didn't c___________ and tried their best to jump up out of the hole. The other frogs kept s___________ that they were sure to die.F___________ ,one of the two frogs ,who heard  what the other frogs were saying ,gave up. Then he fell down and d__________.
The other frog, however, continued to jump to as hard as he c_________, and at last made it out. When he got out，the other frogs asked ,"Didn't you hear us?" The frog, who had something wrong with his e__________, explained ." I thought you were encouraging me all the time."
The story teaches us a l____________：There is a power of life and death on the tongue. An encouraging w________ to those who are down can help them out while a discouraging word can kill them.