题目内容
Have you read this book ________?
[ ]
A.ago
B.before
C.after
D.next
答案:B
解析:
解析:
|
before作副词可用于完成时 |
练习册系列答案
相关题目
题目内容
Have you read this book ________?
[ ]
|
before作副词可用于完成时 |