He will send me a message as soon as he in London.A. arrivedB. arrivesC. will arriveD. i

问题补充：

He will send me a message as soon as he in London.

A. arrived

B. arrives

C. will arrive

D. is arriving

答案：

A. arrived

(答案→)B. arrives

C. will arrive

D. is arriving

解析：句意：他一来伦敦就会给我发信息。as soon as引导的时间状语从句中，指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时。