题目内容：

My first roller coaster experience was not pleasant. It was in the summer of 2009, in Six Flags, Massachusetts, the US. I went    1.   with a group of friends. We were all very excited about roller coaster   2.   waited anxiously for the ride to begin. As the roller coaster got up higher and higher, however, my heart started to beat   3.   hard that I even could see my shirt move up and down. I could feel the wind getting stronger and brushing through my hair. Then the big drop came. I closed my eyes and told    4.   that it would be over in two seconds, but it felt like forever. I was pushed up from my seat as if I    5.  to be thrown out of the car.  6.   the time I finished the ride, I could barely stand up or speak. So when my friends asked me    7.  I thought of the ride, I just answered with silence. No matter how hard I tried, I could not make    8.  sound.