根据首字母或中文填入单词的正确形式，完成句子
76. I feel b_____ (被背叛) by my friend, Hannah.
77. I was determined to be c_____ (愉快的), but Hannah sensed something was wrong.
78. R_____ (不管) of what these friendships are based upon, shared feelings or activities, the important thing to remember is that both of them are friendships.
