—When can I come for the photos? I need them tomorrow afternoon. —They be ready by 12:00.

问题补充：

—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

答案：

should表示“按理应当，大概”。用might语气太不肯定，顾客可能走掉。