英语问题：When her mission was over, she just left...

单项选择

1. When her mission was over, she just left ________ goodbye.

   A. not say    B.with say     C.without say    D.without saying

用括号中所给单词的适当形式填空

   2.  When you cut _____(you), you should put some medicine on it.

   3.  After a long day, he just _____(lie) on the bed and fell asleep.

如果可以,麻烦写出这样做的原因,谢谢!