单项选择题
And the topic "fat" is forbidden. Even the slightest paunch betrays that one is losing the trim and ______ of youth.
单项选择题 Many well-educated people don't believe that ______ will endanger freedom of speech.
单项选择题 What we consider a luxury at one time frequently becomes a ______, many families find that ownership of two cars is indispensable.
