问题
选择题
Our teachers are really ______. They often work in their office far into the night.
A.open-minded
B.hard-working
C.self-confident
D.warm-hearted
答案
答案:B
考查词义辨析。open-minded心胸开阔的,hard-working 勤劳的,self-confident 自信的,warm-hearted 热心肠的,句意:我们真得很勤劳。他经常在办公室工作到深夜。所以选B。