Did you fall off...? — 英语选择题
题目
昨天 Lily 在公园看到 Tom 手臂受伤了,她关心地问:“______?” 下面哪个句子填入横线后正确?(提示:询问过去的意外要用 Did 开头的问句)A. Did you fell off your bike yesterday? B. Did you fall off your bike yesterday? C. Do you fall off your bike yesterday? D. Did you fall off your bike tomorrow?