13．Today I was so happy to find out that I did quite well in last week's science exam．Thanks to Daniel．He （64）taught （teach） me a new way of going over lessons two months ago．It （65）was called （call） the"map idea"．
Because of the map idea，I have learned how to remember the main idea of every lesson．And in my mind （头脑） I can draw a map of all the important facts I need to remember．It is really good and I （66）can remember （remember） so much in that way．
I had never thought of changing （改变） my way of studying before．I was always complaining about （67）having （have） a poor memory （记忆力），but now my memory（68）has become （become） good because of the map idea．It has made me （69）study （study） much better．I realize the most important thing for students is learning how （70）to learn（learn） well．
