阅读理解
Nine years ago, after Leo had died, people said to me. "I never knew he was your stepfather." You see, I never called him that. At first, he was no one special in my life. Then he became my friend. In time, I felt he was also my father.
Leo married my mother when I was eleven. Two years later we moved into a house in a new suburban development, where we put down roots. At first our lawn was just a mud with wild grass, but Leo saw bright possibilities. "We'll plant trees there to give us shade as well as some flowers," he said. And just these little touches made our house different from all the others. More important, a real family was forming. Leo was becoming a full-time parent, and I was learning what it meant to have a father.
Weekday mornings when the weather was bad, Leo often drove me to school. Having a father drop you off may have been something my classmates took for granted, but I always thought it was wonderful. Saturday mornings, we went to the hardware (计算机硬件) shop, then stepped into the five-and-ten, buying a sports magazine or something else. Some people might think that doing shopping together is nothing special, but I, who had ever before spent my childhood watching other families do their everyday activities, experienced them now with extreme delight. Looking back, I realized that Leo gave me what I needed most—the experience of doing ordinary things together as a family.
Soon after we moved to the suburbs, one of our new neighbors introduced herself to me. She had already met my mother and Leo. "You know," she said, "you look just like your father." I knew she was just making a conversation--but even so... "Thank you", I said. Why tell her anything different?
The writer's purpose in writing this passage is _______.

A．to show his pride to have a good stepfather

B．to show how interesting a person Leo was

C．to remind us of our parents

D．to explain why they moved to the suburbs

The phrase “put down roots”in the second paragraph means

A．farmed	B．contacted
C．settled	D．accommodated

In the writer's opinion, _______.

A．it is not easy to live with a stepfather

B．not all the stepfathers are as good as Leo

C．the husband and wife must think more about their children before they divorce

D．in step families the love and friendship are extremely precious

The last sentence “Why tell her anything different?”means that            .

A．he should have told the truth

B．he wouldn't tell her the truth

C．he wanted to tell her something that had nothing to do with Leo

D．he wanted to keep silence whenever he met the neighbors