A、  B、  C、  B提出的问题是问是否照的是彩色相片的一般疑问句，因此选项(B)“照的是黑白的”是恰当的回答。选项(C)中的take的含义是“选择，买”，而问题中的taken的含义是“照相”，注意在发音和含义上都不要将两

How do you like working in the London office?
(A)No, by subway.
(B)I really enjoy it.
(C)Her office is on the fifth floor.

Weren’t the pictures taken in color?
(A)Someone must’ve taken them.
(B)No, I used black and white film.
(C)I’ll take the purple and green one.