单选题 Her behavior is extremely childish.
A. simple B. immature C. beautiful D. foolish

【正确答案】 B
【答案解析】[解析] childish:幼稚的。immature:不成熟的。She is emotionally immature. 她在情感上尚不成熟。simple:简单的。He lives a very simple life for a man who has become incredibly rich.对于一个非常富裕的人来说,他的生活是极其简单的。beautiful:美丽的。She is a very beautiful woman. 她是一个非常美丽的女人。foolish:傻的。She is being very foolish about it. 在这件事上她很傻。注意该句和下句的区别:She is very foolish. 她很傻。用一般现在时,说明傻是她的特征;用现在进行时,说明她在某件具体事情上犯傻,傻并非她的本质。