A: Do you see the person with loose pants and long hair? Is it a boy or girl.
B: A girl. She is my daughter.
A: Oh, please forgive me. I didn't know you were her mother.
B: No, I'm her father.
为什么是I didn't know you were her mother而不是I didn't know you are her mother?为什么选一般过去时呢?
B: A girl. She is my daughter.
A: Oh, please forgive me. I didn't know you were her mother.
B: No, I'm her father.
为什么是I didn't know you were her mother而不是I didn't know you are her mother?为什么选一般过去时呢?