Because of the subway,_____easier for us to travel around the city.A:that is B:this is C:it is
问题描述:
Because of the subway,_____easier for us to travel around the city.A:that is B:this is C:it is
D we are 因该选哪个?原因?
答
c it 在这里做形式主语代替to后面的内容