英语句型转换,急用~
1.She was given a new coat by her mother.(改为主动语态）
Her mother __________ __________a nerw coat.
2.He left the classroom after the bell rang.（改为同义句）
He_________ _________the classroom __________the bell rang.
3.They use pens to write.（改为被动语态）
Pens __________ _________to write.
4.He is poor,but he is happy.（改为同义句）
__________he is poor,he is happy.