题目内容
动词填空(Filling in the blanks with verbs)：
Peter ________ (not return) the book because he ________ (not finish) it.
答案：
解析：
解析：
|
didn't return, hadn't finished |
练习册系列答案
相关题目
题目内容
动词填空(Filling in the blanks with verbs)：
Peter ________ (not return) the book because he ________ (not finish) it.
|
didn't return, hadn't finished |