问题
选择题
_____, it was very difficult, but about an hour later it became easier.[ ]
A. In the end
B. At the end
C. At the beginning
D. In the beginning
答案
答案：D
搜题请搜索小程序“爱下问搜题”
_____, it was very difficult, but about an hour later it became easier.[ ]
A. In the end
B. At the end
C. At the beginning
D. In the beginning
答案：D