根据句意，中文提示或英语释义，写出句中所缺单词，使句子通顺。
---It's five fifteen now.   ----Oh, I see. That is, it's a ______________ past five.
Of all the subjects, ____________（地理）is my favorite.
Millie's pen friend is writing a              /'letə /to her.
Your bedroom is very      ____  （not clean）, please do some cleaning.
She enjoys eating fruit and v______________ every day to keep fit.