Medicine should not be kept where it is _______ to children. 

Children are ______ to meet with setbacks (挫折) as they grow up, so their parents don’t have to worry about it. 

Come and sit down by the fire.Your hand ________.

—Did you listen to Mr.Jackson’s lecture ?— Yes，I have never heard a _____ one.

Recently our government policymakers are very ______ about the rapidly rising food cost.