—What time do we have to be at the gate of the museum? — the visitors begin to check in.A

问题补充：

—What time do we have to be at the gate of the museum?

— the visitors begin to check in.

A. Immediately

B. Quickly

C. Hurriedly

D. Gradually

答案：

(答案→)A. Immediately

B. Quickly

C. Hurriedly

D. Gradually

解析：考查特殊用法。Immediately一…就…;句意：—我们需要在什么时候到博物馆门口：—游客们一开始检票我们就要在那里。