第 18 课: 复合主语；男孩和女孩等-1

The man and the woman are dancing. 那个男人和那个女人正在跳舞

The men and the women are dancing. 那些男人和女人正在跳舞

The men are dancing. 那些男人正在跳舞

The women are dancing. 那些女人正在跳舞

The man is sitting on the bicycle and the boy is sitting on the fence. 那个男人正坐在自行车上，那个男孩儿正坐在栅栏上

The man and the boy are sitting on the bicycle, but they are not riding the bicycle. 那个男人和男孩儿正坐在自行车上，但是他们没有骑自行车

The man and the boy are riding the bicycle. 那个男人和男孩儿正在骑自行车

The man and the woman are riding bicycles. 那个男人和那个女人正在骑自行车