根据句意及括号内的汉语提示，用单词的正确形式填空。
（1）I really don't know how to (面对) them.
（2）When did you go to bed last night? You look so (困倦的).
（3）That trip is the most dangerous (经历)I have ever had.
（4）Keep this (秘密). Don't tell it to anyone.
（5）I don't want to make a wrong (决定) and regret it later.
