Sir a Mr. Wang is waiting for you at the gatehe come in or stay there?A. WillB. MayC.

问题补充：

Sir, a Mr. Wang is waiting for you at the gate. he come in or stay there?

A. Will

B. May

C. Shall

D. Must

答案：

A. Will

B. May

(答案→)C. Shall

D. Must

解析：考查情态动词，A. Will愿意，B. May可以，C. Shall用于第三人称表示征求意见，D. Must必须，句意是：先生，一个叫王先生的人在门口等着，他是进来还是呆在外面。选C。