I have no idea the Greens has moved to Hangzhou or not.A. whenB. thatC. whichD. whether

问题补充：

I have no idea the Greens has moved to Hangzhou or not.

A. when

B. that

C. which

D. whether

答案：

A. when

B. that

C. which

(答案→)D. whether

解析：whether… or not 意为:是否… have no idea意为don know