Believe it or not that is we have dreamt about for twelve years.A. whenB. whichC. whyD.

问题补充：

Believe it or not, that is we have dreamt about for twelve years.

A. when

B. which

C. why

D. what

答案：

A. when

B. which

C. why

(答案→)D. what

解析：考查表语从句。What引导起表语从句，并在句中作为dream about的宾语。句意：信不信由你，那就是来我一直梦想的东西。