第 68 课: 复习第六部分-5

The singer with the red microphone is singing alone. 那个拿红色麦克风的歌手在独唱

The singer is singing with a friend. 那个歌手在和一个朋友唱歌

The woman is singing with the choir. 那个女人在同合唱团一起唱歌

The woman is singing alone while playing the piano. 那个女人一边弹钢琴，一边独唱

I am a policeman. 我是警察

I am a dentist. 我是牙医

I am a carpenter. 我是木匠

I am a scientist. 我是科学家