问题
选择题
________ is very difficult. [ ]
A. lesson five
B. The lesson fifth
C. Five lesson
D. The fifth lesson
答案
答案：D
搜题请搜索小程序“爱下问搜题”
________ is very difficult. [ ]
A. lesson five
B. The lesson fifth
C. Five lesson
D. The fifth lesson
答案：D