—Idon’tunderstand

问题详情：

—I don’t understand_________.      —I’m sorry. But I was doing my homework.

A. why you didn’t watch the football match

B. why didn’t you watch the football match

C. why you don’t watch the football match

D. why don't you watch the football match

【回答】

A

知识点：宾语从句

题型：选择题