单选题 The girl ______ when she couldn't answered the question in the presence of all her classmates.
A．flourished B．flattered C．flushed D．fluttered

【正确答案】 C
【答案解析】[解析] flourish繁荣，茂盛；flatter过分夸赞，奉承；flush(脸)发红；flutter飘动，鼓翼。