单选题 I know this is frustrating, but please try not to lose your temper.
【正确答案】 D
【答案解析】behave stupidly:表现得愚蠢;get impatient:有耐心的;become moody:变得忧郁;get angry:发火,生气。题中lose your temper意为“发脾气”,故可知D选项为正确。