They don’t know what is going to happen when the project .
A. will finish
B. has finished
C. will be finished
D. is finished
网友回答
A. will finish
B. has finished
C. will be finished
(答案→)D. is finished
解析：when引导的时间状语从句常套用“主将从现”的缘故。即when前面的主句使用一般将来时时，其后面的从句使用一般现在时取代一般将来时。