While listening carefully, the students what their teacher said.
A. set down
B. turned down
C. got down
D. calmed down
网友回答
(答案→)A. set down
B. turned down
C. got down
D. calmed down
解析：考查动词短语的区别。A 写下，记下； B 拒绝； C 认真； D 平静；根据句意：当学生们仔细听老师讲时，他们把老师所说的记下来。故A正确。