Where . . . . . . . your books?
A
are
B
is
C
was
D
am
Correct Answer: are
When you are speaking of or for yourself, use "am." When you are talking about a person or a thing (in the singular), use "is." When you are talking to a person, and when you are talking about other people or things (in the plural), use "are."Here, it is plural as "books" is there in the sentence. Hence, are will be used.