Question

カナ

この問題がわかりません。
下線部を意味が通るように書き換えなさい。
という問題です。わかる方お願いします！！

ce:I read a book. It says that they needed it because they wanted to travel longer in a shorter time. Some p
could travel 12 kilometers in one hour on this bicycle.
:That's surprising.
:However, the "Draisine" had a problem. 2 People(ア to イ feet ヴ to I had オ their own
1文本お文英谷の水
e
カ push it キ use ) on the stone roads. So their shoes were *worn easily. People didn't like that and
something was *added to the bicycle. It is very important for today's bicycles, too. Can you guess, Mr.

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