A.15 minutes.B.10 minutes.C.25 minutes.D.20 minutes.

【答案】D

【解析】

【原文】

M: How long does it take you to go to school, Mary?

W: It takes me 15 minutes. How about you, Peter?

M: It takes me five minutes more than you.

Q: How long does it take Peter to go to school? (D)