—Could you tell us _________ to do it? —Of course. First of all, you should clean the wall, then clean the floor. A．when B．what C．how D．whether
—Could you tell us _________ to do it? —Of course. First of all, you should clean the wall, then clean the floor.
A、when
B、what
C、how
D、whether
发布时间：2025-07-16 08:55:34
