单选题 There were dirty marks on her trousers ______ she had wiped her hands.
  • A. where
  • B. which
  • C. when
  • D. that


【正确答案】 A
【答案解析】[考点] 考查地点状语从句。
where引导了一个表示地点的状语从句，表示dirty marks存在的地点。故正确答案为A。