单选题 When we walked (past) the theater, there were a lot of people (waited) (in) a long line outside the (box office).
  • A. past
  • B. waited
  • C. in
  • D. box office


【正确答案】 B
【答案解析】分词用法错误，应改为waiting。people是wait的逻辑主语，两者是主动关系，所以用现在分词。