Hannah and I have been best friends ____ primary school. We are both academic and like to study. On Monday, ______ had a surprise math quiz, ______ I thought was quite easy. The next day, I was told I had the lowest grade in the class. I felt deeply ashamed. Afterwards, I pretended to be cheerful, _____ Hannah sensed something was wrong. I admitted ______ badly I had done in the quiz. She promised me to keep it a secret. _______, the next day, I found my classmates had known about ______. I thought that Hannah must have told my classmates about my grade after promising not to. I was angry with her for ______keeping her word.