单句改错

①Struggled in a world of silence and darkness, Helen Keller seemed to be simple-minded.____

②The three Bronte sisters adopted this practice, Mary Ann Evans did the same.

____

③We decided to fight against this unfair system which prohibits us blacks sitting where we like.____

④Our friendship had developed quickly over the weeks that followed.____

⑤Maybe if I studied science then,I would have been able to give you more help.

____

钱玄同在《中国今后文字问题》中说：“欲使中国不亡，欲使中国民族为二十世纪文明之民族，必废以孔学，灭道教为根本之解决；而废记载孔门学说及道教妖言之汉文，尤为根本解决之根本解决。”钱玄同主张废除汉字的主要原因是

被除数末尾有0，商的末尾不一定也有0．