50. That educators have not anticipated the impact
of microcomputer technology can hardly be
said that it is their fault: Alvin Toffler, one of the most prominent students of the future, did not even mention microcomputers in
Future Shock, published in 1970. (A) That educators have not anticipated the impact of microcomputer technology can hardly be said that it is their fault (B) That educators have not anticipated the impact of microcomputer technology can hardly be said to be at fault (C) It can hardly be said that it is the fault of educators who have not anticipated the impact of microcomputer technology (D) It can hardly be said that educators are at fault for not anticipating the impact of microcomputer technology (E) The fact that educators are at fault for not anticipating the impact of microcomputer technology can hardly be said
我不太懂为什么a错了，og的解释是the main verb is both preceded and followed by a subordinate clause，可是这样不行吗？ 有点晕~~~~~~ | 
