This is from my English Cambridge Proficiency Book. In Unit 8 about inversions, I had to rewrite the sentence:
Original sentence:
It is very difficult for town centre redevelopment to achieve a harmonious balance between old and new
My answer:
Rarely is it easy for town centre redevelopment to achieve a harmonious balance between old and new
Correct question (according to the book):
Rarely do/will/can town centre redevelopments achieve a harmonious balance between old and new.
I wonder why my answer isn't acceptable.
Is there anything fundamentally wrong with my sentence?
Thanks
Best Answer
Your answer is not only perfectly acceptable, but a more accurate rendering than the one they want.
In their answer they have tacitly applied an implication (which is not even a logical implication, but a material one) that 'X is difficult' => 'X occurs rarely'. I think this is inappropriate in a grammar book.