She will send you an e-mail as soon as she in Canada.A. arrivesB. arrivedC. am arrivingD.

问题补充：

She will send you an e-mail as soon as she in Canada.

A. arrives

B. arrived

C. am arriving

D. will arrive

答案：

(答案→)A. arrives

B. arrived

C. am arriving

D. will arrive

解析：句意：她一到加拿大，她就会给你发一封电子邮件。当主句描述将来动作时，英语条件状语从句中用一般现在时态表示将来动作。结合语境可知选A。