C15

The school wasn't that far from her house. It was only fifteen minutes' drive away and only forty minutes' walk away.

After returning home, when Xu's Mother saw that she was alone, he could not help but ask: "Where's Qian Nan?"

As Xu Zhengxi changed off his shoes, he said, "The company has some business, I'm back at the company."

Xu's Mother sighed, then returned to his room to cook dinner