单选题 Laura, who comes from a wealthy family, spends most of her time enjoying herself, but takes ______ pains with her lessons.
【正确答案】 A
【答案解析】[解析] pains复数形式表示“辛苦，努力”，是不可数名词。take pains尽力，耐心；take little pains不努力。本题空格处是说在功课上不努力。因此A项为正确答案。