问题补充:
The trip was hard at first. But it was smooth .
A. at the end
B. in the end
C. of the end
D. by the end
答案:
A. at the end
(答案→)B. in the end
C. of the end
D. by the end
解析:短语辨析。A. 最终;在终点 B. 终于;最后 C. 结束 D. 到……为止。句意:路程开始很艰难,但是最后顺利了。选项A强调在一个点,故选B。