> 
>          ア．
>              The wowan who was working behind the desk was my aunt.
>          イ．
>              The wowan who was working behind the desk was my aunt.
>                      a.　being working
>                      b.　to work
>                      c.　to be working
>                      d.　working
> アイを同じ内容にせよ


参考：2000/03/08(水)14時44分15秒