问题

Did you return the book to me Why can’tI find it anywhere — ________. You were writing a letter atyour desk at that time.
A:make
B:I did give it to you
C:I had given it to you
D:I do give it to you
B:I did give it to you
C:I had given it to you
D:I do give it to you
正确答案是: