问题补充：
—When will he leave for Shanghai?
—As soon as he _ his work.
A. finished
B. will finish
C. is finishing
D. finishes
答案：
A. finished
B. will finish
C. is finishing
(答案→)D. finishes
解析：英语中当主句为一般将来时态时，从句用一般现在时态表示将来发生的事情，根据题意可知下文省略了主句，he will leave for shanghai ，故选D。
