第二节短文改错（共10小题，每小题1.5分，满分15分）
When I was little, my mom once took me to America 76. ______________
to visit one of our relative. At that time I couldn’t speak 77. ______________
a word of English, but I was deep impressed by the 78. ______________
teenagers here. Their skin was bright like sunshine， 79. ______________
their eyes were blue but they always looked happy． 80. ______________
How time flies! I’m teenager myself now．A friend of 81. ______________
mine in Los Angeles often tells me he attends to various 82. ______________
clubs, plans for his future and never had a formal 83. ______________
exam in his school so far．All the students enjoy them at 84. ______________
school. That’s what I know about America teenagers． 85. ______________