英语改句题Air pollution comes from smoke,and dust( from power station) 划线部分提问（括弧内为划线部分）注意是有两层意思当中有逗号，只对后面的dust提问

英语改句题Air pollution comes from smoke,and dust( from power station) 划线部分提问（括弧内为划线部分）注意是有两层意思当中有逗号，只对后面的dust提问
英语改句题
Air pollution comes from smoke,and dust( from power station) 划线部分提问（括弧内为划线部分）
注意是有两层意思当中有逗号，只对后面的dust提问

英语改句题Air pollution comes from smoke,and dust( from power station) 划线部分提问（括弧内为划线部分）注意是有两层意思当中有逗号，只对后面的dust提问
Air pollution comes from smoke,and where does dust come from?

from power stations

Air pollution comes from smoke,and dust comes from power station.

Air pollution comes from smoke,and where does dust come from?

Air pollution comes from smoke,and where does the dust come from?

Where does the Air pollution come from?

What else does air pollution come from except smoke?

Air pollution comes from smoke,and where does dust from ?

Air pollution comes from smoke,and where does dust come from?