Professor Smith will come here to give a speech.All the preprations must be______before 5 o'clockA.in time B.in sight C.in place D.in control

分类: 作业答案 • 2022-01-09 18:04:45

问题描述：

Professor Smith will come here to give a speech.All the preprations must be______before 5 o'clock
A.in time B.in sight C.in place D.in control

答