新概念英语2同步课文练习答案
第二课答案：Lesson 2: cdcca bbadc db 这是后面的习题，也给你：Lesson 3: cacac bccba bb Lesson 4: dbabb acbca cc Lesson 5: cadbc dabcb bd Lesson 6: dacdd adaba da Lesson 7: bccda cdacb ab Lesson 8: dbbac cbbad bb Lesson 9: cbdaa bbdbb dc Lesson 10: addcb cacac ca...