Which of the following is NOT one of the characteristics of idioms?

一般来说，在用词方面，（）

During the 1990s many Australians called for their nation to become a republic with ________.

Australia is located between ________ and the Indian Ocean.

Young ________ he was, he managed to make a living on his own.

Perseverance is a kind of quality and that is _______ it takes to do anything well.

A fault line runs the length of New Zealand, which means that it often has________.

In 1920,( )published his first novel This Side of Paradise which was,to some extent,his own story.

Like all naturalists,( )was restrained from finding a solution to the social problems that appeared in his novels and accordingly almost all his works have tragic endings.

The New Frontier and War on Poverty were put forward respectively by ________.