52单词网 > 高中英语 > 高中英语题库 > Tom, clean up the broken glass someone walks on it. A.since B. when C. before D.

Tom, clean up the broken glass someone walks on it. A.since B. when C. before D.

来源:网络 时间:
Tom, clean up the broken glass someone walks on it. A.since B. when C. before D.

Tom, clean up the broken glass _________ someone walkson it.

A.since       B.when       C. before     D.as

 

试题答案

【答案】

C

【解析】

试题