Question

【题目】—— I dropped in on you at about four, p.m., but you didn’t answer the door.

—— Oh, that was probably _________ I was playing badminton in the stadium nearby.

A. that B. what C. when D. why

Answer 1

【答案】C

【解析】句意：---我下午四点去看你，但是你没开门。---哦，那很可能是我在附近体育馆打羽毛球的时候。根据题干中提到的时间at about four, p.m，答语中应该是回答的时间，空后的表语从句在缺少时间状语，故选C。