Try this Idiom question from the Official Guide!

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

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Think of “that educators have not anticipated the impact of microcomputers technology” as one long noun. We could replace it with something like “This fact….” If we did that the original sentence would read:

This fact can hardly be said that it is their fault.

“that it is their fault” is incorrect. Something is “said TO BE” something, idiomatically. It would need to read, “can hardly be said TO BE their fault.”

Thus, A is eliminated.

E takes a different approach. If we replaced the full noun again with “this fact,” the sentence would read: “This fact can hardly be said.” This meaning is unclear. The focus is not that this fact literally can’t be said; the focus is that there are no grounds for saying the educators are at fault.

Looking at D, it makes it very clear what “can hardly be said” by neatly putting the noun-verb “educators are” after the “that.” Everything starting with “for…” is a long prepositional phrase that we could eliminate.

D would then read: “It can hardly be said that it is the fault of educators.” Clear, concise, logical. The correct answer is (D).