閱讀下面對話，掌握其大意，并根據(jù)所給首字母的提示，在橫線上寫出一個英語單詞的完整、正確形式，使對話通順。

Marie：Jerry，is today Tuesday the fifth，or am I（76）m                   ?

Jerry：I'm not（77）q                sure，either．Let me have a look．Oh，I am afraid you're mistaken．Marie．It's Tuesday the seventh．

Marie：Oh，my God! I hope this afternoon Miss Defoe will stay at the（78）t             office．I must tell her that I'm going to give up my biology．Do you think the teacher will（79）a                            me to do so?

Jerry：But why are you stopping biology? You're（80）f                 of it, aren't you?

Marie：Yes，but I've（81）m                   too many classes because of my part-time job．I'm so far（82）b                everyone and maybe I will（83）f            the exam．So it's better for me to give it up this term．

Jerry：That's a（84）S                      ．

Marie：Yeah，but（85）l                   biology is only a course for us to choose this term．I hope I can start again next year．