用现在分词改写下列句子：

题目

用现在分词改写下列句子：
1.When night came on,we started for home.
2.After he finished his work,Henry went home.
3.Look round when you cross the street.
4.As it was a wet day,we couldn't go for a walk.
5.Because he did not know how to do it,he turned to her for help.
6.Li Ming sat at the desk and wrote an article in English.
7.As soon as she had made the beds,she started making breakfast.
8.As i had not received an answer,i wrote to him again.
9.Did you see the girl who was dancing with your brother?
10.While i was walking in the street ,i saw a friend of mine.
能不能顺便教我一下方法啊?

答案

We started for home with night coming on.
Having finished his work,Henry went home.
Look round when crossing the street.
As it being a wet day,we couldn't go for a walk.
Not knowing how to do it,he turned to her for help.
LiMing sat at the desk,writing an article in English.
Having made the beds,she started making breakfast.
Not having received an answer,I wrote to him again.
Did you see the girl dancing with your brother?
While walking in the street,I saw a friend of mine.