T-9-Q24, would have done

For many people, household labor remains demanding even if able to afford household appliances their grandparents would find a miracle.

(A) even if able to afford household appliances their grandparents would find a miracle

(B) despite being able to afford household appliances their grandparents would find a miracle

(C) even if they can afford household appliances their grandparents would have found miraculous

(D) although they could afford household appliances their grandparents would find miraculous（C）
                    

(E) even if they are able to afford household appliances which would have been a miracle to their grandparents

ANS; C

    c 中的  would have done 的时态是怎么来的？

     实在太笨，垦请高手讲解！

ANS; C

    c 中的  would have done 的时态是怎么来的？

     实在太笨，垦请高手讲解！