问题补充:
While listening carefully, the students what their teacher said.
A. set down
B. turned down
C. got down
D. calmed down
答案:
(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。