Employees working busily _______ the job did not hear the alarm.

分类: 外贸英语写作(00097) 发布时间: 2024-08-14 20:31 浏览量: 0
Employees working busily _______ the job did not hear the alarm.
A、in
B、on
C、with
D、for
【正确答案】:B