【题目】My brother is really ____. He often works in his office far into the night.
A.open-mindedB.hard-workingC.self-confidentD.warm-hearted
在线课程【答案】B
【解析】
考查形容词词义辨析。句意：我的弟弟很勤奋.他经常在办公室工作到深夜。通过第二句的“works in his office far into the night”可知“我”哥哥是个勤奋工作的人。故选B项。