【题目示例】

　　Steve: I’m going over to the gym. [1] ________

　　Joseph: Why don’t you run outside?

　　A. Are you kidding?

　　B. I’ll go over to the gym too.

　　C. I want to do some running.

　　【答案】C

　　【解析】C 选项 I want to do some running(我想跑步)，对应后文中的 Why don’t you run outside(你为什么不去户外跑)，其中 running 是 run 的派生词。故本题选 C。