---Excuseme，doyouknow

问题详情：

---Excuse me，do you know______yesterday？

---Sure．It closed at 6：00 p．m．yesterday．

A．when the bookstore closes

B．when does the bookstore close

C．when the bookstore closed

D．when did the bookstore close

【回答】

C

知识点：宾语从句

题型：选择题