题型：单选题 知识点：
题目：
29. Betty enjoys playing ______ piano， but her brother is interested in playing ______ football.
A. the； the B. the； / C. /； the
答案及解析
29. Betty enjoys playing ______ piano， but her brother is interested in playing ______ football.
A. the； the B. the； / C. /； the
