ed与ing
问题描述：
ed与ing
The manager and heads
of the sections will spend the morning _______ in the meeting room,____the problems they are
facing..
A.locking; discussing B.locked; discussed C.locked; discussing D.
locking; discussed
选什么,
答
选C.
第一个locked 是过去分词做状语,表示被动.被锁在会议室.
第二个是spend some time doing sth 花费时间做某事.请翻译下整句话经理和部门主管将花费一上午的时间，在会议室召开闭门会议，讨论他们正面临的困难