举例: Glancing at her scornfully, the assistant told her that the dress was sold.
Heated, water changes into steam.
glancing和heated哪个是过去分词?哪个是现在分词?
glancing的主语是谁?是不是the assistant?
heated的主语是谁?是不是water?
可不可以把glancing变成glanced?可不可以把heated变成heating?
(用现在分词或过去分词把2句变成1句)
I looked out of the window. I saw lots of people on the street.