题目内容
找出能替换画线部分的那一项
By the end of last year, we had finished reading five English books.
[ ]
A. Before last year ended
B. Before last year began
C. After last year began
D. When last year began
答案：A
练习册系列答案
快乐小博士巩固与提高系列答案
相关题目