—Dad please tell me when Mum. I miss her very much. —She will return when she her task. A

问题补充：

—Dad, please tell me when Mum. I miss her very much.

—She will return when she her task. And she will bring a nice present for you.

A. returns; finishes

B. returns; will finish

C. will return; finishes

D. will return; will finish

答案：

A. returns; finishes

B. returns; will finish

(答案→)C. will return; finishes

D. will return; will finish

解析：句意：爸爸，请告诉我妈妈什么时间回来。我非常想念她。她一完成任务就回来。而且她会给你带来一件漂亮的礼物。第一句为一般将来时，用will return；第二句话中when引导的时间状语从句用一般现在时表示将来时，故用finishes；故选C。