寻求救援

My Chinese language was put to test.

Here is how it goes. You need to add a stroke (and only one stroke) to the Chinese character, 日 (ri) to form nine other different Chinese characters. 

I managed to complete eight of them but still can't figure out the last one since dinner. Any 军师?

Here's the eight characters so far:

白 田 目

甲 由 申

旦 旧   ?

我要寻求救援! Anyone???