Question

英语选择题17

Geographers were once concerned largely with exploring areas unknow to them and (from) describing distinctive features of individual places。

为什么括号中的错 怎么改

Answer 1

Geographers were once concerned largely with exploring areas unknow to them and (from) describing distinctive features of individual places。
为什么括号中的错 怎么改
答：with
They were concerned with doing A and with doing B.
有人认为去掉from,我觉得不妥。因为 1.既然是改错题，说明这个词不合适。2. 因为doing A短语太长，有必要再重复一下这个with. 3. 为了避免误以为它与were连用。

Answer 2

about
...be concerned about关心