—Excuse me.Could you please tell me ?—Sure.There’s a bookstore on River Road.A. where can

—Excuse me.Could you please tell me ?
—Sure.There’s a bookstore on River Road.
A. where can I get a dictionary
B. where could I get a dictionary
C. where I could get a dictionary
D. where I can get a dictionary

A. where can I get a dictionaryB. where could I get a dictionaryC. where I could get a dictionary(答案→)D. where I can get a dictionary解析： 本题tell后跟的是从句应该用陈述的顺序，故不选AB，本题问的是一般情况，不用过去时，故本题选D。

就是这个解释