When can I come for the photos? I need them tomorrow afternoon.—

When can I come for the photos? I need them tomorrow afternoon.—They ______ be ready by 12:00.
A、can
B、should
C、might
D、need
【正确答案】：B
【题目解析】：can：能够;should:应该，表示责任、义务。Might：可能;need：需要。它们应该在12点前准备好。所以，答案是B。