-Excuseme,doyouknow

問題詳情：

- Excuse me, do you know ______?

- Sure. There is a bookstore down the street.

A. where can I get some postcards      B. where I can get some postcards

C. when I can get some postcards       D. when can I get some postcards

【回答】

B

知識點：賓語從句

題型：選擇題