问题
Chris is very clever and never wastes any time doinguseless things—No _______ he always comes first in the examinations
A:when will he be back, comes, will let
B:when he will be back, will come, will let
C:what time will he be back, will come, let
D:what time he will be back, comes, will let
B:when he will be back, will come, will let
C:what time will he be back, will come, let
D:what time he will be back, comes, will let
正确答案是：
