The World Wide Web is sometimes jokingly called the World Wide Wait because it be very sl

问题补充：

The World Wide Web is sometimes jokingly called the World Wide Wait because it be very slow.

A. should

B. must

C. will

D. can

答案：

A. should

B. must

C. will

(答案→)D. can

解析：情态动词辨析. A.应该 B.必须;一定 C. 愿意;将要 D.能.万维网有时被称为万维宽等,因为它可能非常慢.故选D.