—Excuse me but I haven’t got the iPhone 4 ordered through the Internet —Sorry madam I’m s

问题补充：

—Excuse me，but I haven’t got the iPhone 4 ordered through the Internet．

—Sorry madam,I’m sure youhave it by this Friday．

A. must

B. may

C. could

D. shall

答案：

A. must

B. may

C. could

(答案→)D. shall

解析：考查情态动词的用法。Shall用语二三人称表示一种语气，在这里表示允诺，句意：我确信到这周五，你可以拿到的。故选D。