PP2语法题~[讨论]

我有我可以

TEST1-5    3

3 Flash photography is (widely) used for (taking) pictures when the natural light (is insufficient), such as outdoors at night and indoors (most of time).

[此贴子已经被作者于2003-4-15 2:15:03编辑过]

hxd21

choose D
It should be (at most of time).