阅读下面短文，掌握大意，然后从A、B、C、D四个选项中选出最佳选项。

Dale is a 7-year-old boy. He has a good1at school. Her name is Mary. They are in the2class. Dale likes Chinese. He thinks it's3and Mary does, too. Dale goes to school and goes home4Mary. They like tennis and they always5it afterschool.

One day, Dale says to his mother, "Mom, I want to lend（借）you to Mary."

"Lend me to Mary?6do you want to do that?" his mother asks.

"All the students in my class have their mothers,7Mary doesn't." says Dale, "She lost her mother and she wants one."

"You want to8your friend. I'm very happy." says his mother. "I can be her mother. She can9to our home after class and I can look after（照看）her."

Dale is very happy and says, "How about her10? He doesn't have a wife(妻子)."