启教通信息平台
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1526

There are more than 740 million Chinese ______ to second-hand smoking in public places now.

A.are being exposed B.to expose
C.having been exposed D.exposed
登录并查看解析

There are more than 740 millio