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

Part of the reason Charles Dickens loved his own novel, David Copperfield, was ________ it was rather closely modeled on his own life.(2010·北京)

 The reason________ Peng Liyuan is widely discussed recently is ________ she is seen as the most beautiful first lady in China.

In my point of view, the question is not _____ the world is going to have a new economic crisis, but when. 

 ______ he can hardly read is ____________ he is slow in mind.