—Who is the girl standing over there? —Well if you know her name is Kate.A. must B. ma

问题补充：

—Who is the girl standing over there? —Well, if you know, her name is Kate.

A. must

B. may

C. can

D. shall

答案：

(答案→)A. must

B. may

C. can

D. shall

解析：句意：站在那里的那个女孩是谁？要是你一定要知道的话，她的名字是凯特。情态动词must在此表示“偏偏，非要”，故选A。