6 . When I was about four or five, my grandmother was living in London. We children ______ spent weekends at her apartment (公寓). We loved going there ______ my grandmother often cooked special meals for us and took us for lovely walks in Regent’s Park. One summer holiday, I was invited to stay with her on my own, ______ my brothers and sisters.

On the first day, after lunch, my grandmother told me that she would take a break, and that I should take one too. I tried to ______ but I couldn’t, so after a while I got up and decided to explore (探索) the apartment. Everywhere was ______ so I thought that my grandmother was sleeping. The ______ I most wanted to explore was my grandfather’s study (书房).

That’s because I was told not to go in there. I opened the door and went in. A large old desk caught my ______. I climbed onto the chair and saw a green pen on the desk. I had asked my parents for a real pen for a long time, but they ______. I picked up the pen and looked at it carefully. At that time, I heard my grandmother’s voice saying “Christina? Where are you? What are you doing?” Then I ______ that my grandmother was coming towards the study. I will never forget the feeling of ______ that she caught me doing something that she had forbidden (禁止) me to do…