优题课 - 聚名师,上好课(www.youtike.com)
  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:1144

Ted and his friends established a website offering useful information about thunderstorms ______ similar accidents happening.

A.prevent B.preventing
C.to prevent D.prevented
登录免费查看答案和解析

Tedandhisfriendsestablishedawe